100+ datasets found
  1. f

    Collection of example datasets used for the book - R Programming -...

    • figshare.com
    txt
    Updated Dec 4, 2023
    Share
    FacebookFacebook
    TwitterTwitter
    Email
    Click to copy link
    Link copied
    Close
    Cite
    Kingsley Okoye; Samira Hosseini (2023). Collection of example datasets used for the book - R Programming - Statistical Data Analysis in Research [Dataset]. http://doi.org/10.6084/m9.figshare.24728073.v1
    Explore at:
    txtAvailable download formats
    Dataset updated
    Dec 4, 2023
    Dataset provided by
    figshare
    Authors
    Kingsley Okoye; Samira Hosseini
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Description

    This book is written for statisticians, data analysts, programmers, researchers, teachers, students, professionals, and general consumers on how to perform different types of statistical data analysis for research purposes using the R programming language. R is an open-source software and object-oriented programming language with a development environment (IDE) called RStudio for computing statistics and graphical displays through data manipulation, modelling, and calculation. R packages and supported libraries provides a wide range of functions for programming and analyzing of data. Unlike many of the existing statistical softwares, R has the added benefit of allowing the users to write more efficient codes by using command-line scripting and vectors. It has several built-in functions and libraries that are extensible and allows the users to define their own (customized) functions on how they expect the program to behave while handling the data, which can also be stored in the simple object system.For all intents and purposes, this book serves as both textbook and manual for R statistics particularly in academic research, data analytics, and computer programming targeted to help inform and guide the work of the R users or statisticians. It provides information about different types of statistical data analysis and methods, and the best scenarios for use of each case in R. It gives a hands-on step-by-step practical guide on how to identify and conduct the different parametric and non-parametric procedures. This includes a description of the different conditions or assumptions that are necessary for performing the various statistical methods or tests, and how to understand the results of the methods. The book also covers the different data formats and sources, and how to test for reliability and validity of the available datasets. Different research experiments, case scenarios and examples are explained in this book. It is the first book to provide a comprehensive description and step-by-step practical hands-on guide to carrying out the different types of statistical analysis in R particularly for research purposes with examples. Ranging from how to import and store datasets in R as Objects, how to code and call the methods or functions for manipulating the datasets or objects, factorization, and vectorization, to better reasoning, interpretation, and storage of the results for future use, and graphical visualizations and representations. Thus, congruence of Statistics and Computer programming for Research.

  2. d

    Replication Data for: Revisiting 'The Rise and Decline' in a Population of...

    • search.dataone.org
    Updated Nov 22, 2023
    Share
    FacebookFacebook
    TwitterTwitter
    Email
    Click to copy link
    Link copied
    Close
    Cite
    TeBlunthuis, Nathan; Aaron Shaw; Benjamin Mako Hill (2023). Replication Data for: Revisiting 'The Rise and Decline' in a Population of Peer Production Projects [Dataset]. http://doi.org/10.7910/DVN/SG3LP1
    Explore at:
    Dataset updated
    Nov 22, 2023
    Dataset provided by
    Harvard Dataverse
    Authors
    TeBlunthuis, Nathan; Aaron Shaw; Benjamin Mako Hill
    Description

    This archive contains code and data for reproducing the analysis for “Replication Data for Revisiting ‘The Rise and Decline’ in a Population of Peer Production Projects”. Depending on what you hope to do with the data you probabbly do not want to download all of the files. Depending on your computation resources you may not be able to run all stages of the analysis. The code for all stages of the analysis, including typesetting the manuscript and running the analysis, is in code.tar. If you only want to run the final analysis or to play with datasets used in the analysis of the paper, you want intermediate_data.7z or the uncompressed tab and csv files. The data files are created in a four-stage process. The first stage uses the program “wikiq” to parse mediawiki xml dumps and create tsv files that have edit data for each wiki. The second stage generates all.edits.RDS file which combines these tsvs into a dataset of edits from all the wikis. This file is expensive to generate and at 1.5GB is pretty big. The third stage builds smaller intermediate files that contain the analytical variables from these tsv files. The fourth stage uses the intermediate files to generate smaller RDS files that contain the results. Finally, knitr and latex typeset the manuscript. A stage will only run if the outputs from the previous stages do not exist. So if the intermediate files exist they will not be regenerated. Only the final analysis will run. The exception is that stage 4, fitting models and generating plots, always runs. If you only want to replicate from the second stage onward, you want wikiq_tsvs.7z. If you want to replicate everything, you want wikia_mediawiki_xml_dumps.7z.001 wikia_mediawiki_xml_dumps.7z.002, and wikia_mediawiki_xml_dumps.7z.003. These instructions work backwards from building the manuscript using knitr, loading the datasets, running the analysis, to building the intermediate datasets. Building the manuscript using knitr This requires working latex, latexmk, and knitr installations. Depending on your operating system you might install these packages in different ways. On Debian Linux you can run apt install r-cran-knitr latexmk texlive-latex-extra. Alternatively, you can upload the necessary files to a project on Overleaf.com. Download code.tar. This has everything you need to typeset the manuscript. Unpack the tar archive. On a unix system this can be done by running tar xf code.tar. Navigate to code/paper_source. Install R dependencies. In R. run install.packages(c("data.table","scales","ggplot2","lubridate","texreg")) On a unix system you should be able to run make to build the manuscript generalizable_wiki.pdf. Otherwise you should try uploading all of the files (including the tables, figure, and knitr folders) to a new project on Overleaf.com. Loading intermediate datasets The intermediate datasets are found in the intermediate_data.7z archive. They can be extracted on a unix system using the command 7z x intermediate_data.7z. The files are 95MB uncompressed. These are RDS (R data set) files and can be loaded in R using the readRDS. For example newcomer.ds <- readRDS("newcomers.RDS"). If you wish to work with these datasets using a tool other than R, you might prefer to work with the .tab files. Running the analysis Fitting the models may not work on machines with less than 32GB of RAM. If you have trouble, you may find the functions in lib-01-sample-datasets.R useful to create stratified samples of data for fitting models. See line 89 of 02_model_newcomer_survival.R for an example. Download code.tar and intermediate_data.7z to your working folder and extract both archives. On a unix system this can be done with the command tar xf code.tar && 7z x intermediate_data.7z. Install R dependencies. install.packages(c("data.table","ggplot2","urltools","texreg","optimx","lme4","bootstrap","scales","effects","lubridate","devtools","roxygen2")). On a unix system you can simply run regen.all.sh to fit the models, build the plots and create the RDS files. Generating datasets Building the intermediate files The intermediate files are generated from all.edits.RDS. This process requires about 20GB of memory. Download all.edits.RDS, userroles_data.7z,selected.wikis.csv, and code.tar. Unpack code.tar and userroles_data.7z. On a unix system this can be done using tar xf code.tar && 7z x userroles_data.7z. Install R dependencies. In R run install.packages(c("data.table","ggplot2","urltools","texreg","optimx","lme4","bootstrap","scales","effects","lubridate","devtools","roxygen2")). Run 01_build_datasets.R. Building all.edits.RDS The intermediate RDS files used in the analysis are created from all.edits.RDS. To replicate building all.edits.RDS, you only need to run 01_build_datasets.R when the int... Visit https://dataone.org/datasets/sha256%3Acfa4980c107154267d8eb6dc0753ed0fde655a73a062c0c2f5af33f237da3437 for complete metadata about this dataset.

  3. e

    Data and R code for "Nonergodicity in Load and Recovery: Group Results Do...

    • b2find.eudat.eu
    • dataverse.nl
    Updated Feb 9, 2024
    Share
    FacebookFacebook
    TwitterTwitter
    Email
    Click to copy link
    Link copied
    Close
    Cite
    (2024). Data and R code for "Nonergodicity in Load and Recovery: Group Results Do Not Generalize to Individuals" [Dataset]. https://b2find.eudat.eu/dataset/b858a7d7-9dc4-50d4-9d4a-76bc5e1f875e
    Explore at:
    Dataset updated
    Feb 9, 2024
    Description

    This environment contains the data and the R code for the purpose of replication, reanalysis, new analysis, and reinterpretation of the study results. The data set "Data" consists of time series across one football season of 84 professional youth players. More detailed information about what kind of data we collected and how can be retrieved from the article.

  4. w

    Randomized Hourly Load Data for use with Taxonomy Distribution Feeders

    • data.wu.ac.at
    application/unknown
    Updated Aug 29, 2017
    Share
    FacebookFacebook
    TwitterTwitter
    Email
    Click to copy link
    Link copied
    Close
    Cite
    Department of Energy (2017). Randomized Hourly Load Data for use with Taxonomy Distribution Feeders [Dataset]. https://data.wu.ac.at/schema/data_gov/NWYwYmFmYTItOWRkMC00OWM0LTk3OGYtZDcyYzZiOWY5N2Ez
    Explore at:
    application/unknownAvailable download formats
    Dataset updated
    Aug 29, 2017
    Dataset provided by
    Department of Energy
    License

    CC0 1.0 Universal Public Domain Dedicationhttps://creativecommons.org/publicdomain/zero/1.0/
    License information was derived automatically

    Description

    This dataset was developed by NREL's distributed energy systems integration group as part of a study on high penetrations of distributed solar PV [1]. It consists of hourly load data in CSV format for use with the PNNL taxonomy of distribution feeders [2]. These feeders were developed in the open source GridLAB-D modelling language [3]. In this dataset each of the load points in the taxonomy feeders is populated with hourly averaged load data from a utility in the feeder’s geographical region, scaled and randomized to emulate real load profiles. For more information on the scaling and randomization process, see [1].

    The taxonomy feeders are statistically representative of the various types of distribution feeders found in five geographical regions of the U.S. Efforts are underway (possibly complete) to translate these feeders into the OpenDSS modelling language.

    This data set consists of one large CSV file for each feeder. Within each CSV, each column represents one load bus on the feeder. The header row lists the name of the load bus. The subsequent 8760 rows represent the loads for each hour of the year. The loads were scaled and randomized using a Python script, so each load series represents only one of many possible randomizations. In the header row, "rl" = residential load and "cl" = commercial load. Commercial loads are followed by a phase letter (A, B, or C). For regions 1-3, the data is from 2009. For regions 4-5, the data is from 2000.

    For use in GridLAB-D, each column will need to be separated into its own CSV file without a header. The load value goes in the second column, and corresponding datetime values go in the first column, as shown in the sample file, sample_individual_load_file.csv. Only the first value in the time column needs to written as an absolute time; subsequent times may be written in relative format (i.e. "+1h", as in the sample). The load should be written in P+Qj format, as seen in the sample CSV, in units of Watts (W) and Volt-amps reactive (VAr). This dataset was derived from metered load data and hence includes only real power; reactive power can be generated by assuming an appropriate power factor. These loads were used with GridLAB-D version 2.2.

    Browse files in this dataset, accessible as individual files and as a single ZIP file. This dataset is approximately 242MB compressed or 475MB uncompressed.

    For questions about this dataset, contact andy.hoke@nrel.gov.

    If you find this dataset useful, please mention NREL and cite [1] in your work.

    References:

    [1] A. Hoke, R. Butler, J. Hambrick, and B. Kroposki, “Steady-State Analysis of Maximum Photovoltaic Penetration Levels on Typical Distribution Feeders,” IEEE Transactions on Sustainable Energy, April 2013, available at http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6357275 .

    [2] K. Schneider, D. P. Chassin, R. Pratt, D. Engel, and S. Thompson, “Modern Grid Initiative Distribution Taxonomy Final Report”, PNNL, Nov. 2008. Accessed April 27, 2012: http://www.gridlabd.org/models/feeders/taxonomy of prototypical feeders.pdf

    [3] K. Schneider, D. Chassin, Y. Pratt, and J. C. Fuller, “Distribution power flow for smart grid technologies”, IEEE/PES Power Systems Conference and Exposition, Seattle, WA, Mar. 2009, pp. 1-7, 15-18.

  5. Data Mining Project - Boston

    • kaggle.com
    Updated Nov 25, 2019
    Share
    FacebookFacebook
    TwitterTwitter
    Email
    Click to copy link
    Link copied
    Close
    Cite
    SophieLiu (2019). Data Mining Project - Boston [Dataset]. https://www.kaggle.com/sliu65/data-mining-project-boston/discussion
    Explore at:
    CroissantCroissant is a format for machine-learning datasets. Learn more about this at mlcommons.org/croissant.
    Dataset updated
    Nov 25, 2019
    Dataset provided by
    Kagglehttp://kaggle.com/
    Authors
    SophieLiu
    Area covered
    Boston
    Description

    Context

    To make this a seamless process, I cleaned the data and delete many variables that I thought were not important to our dataset. I then uploaded all of those files to Kaggle for each of you to download. The rideshare_data has both lyft and uber but it is still a cleaned version from the dataset we downloaded from Kaggle.

    Use of Data Files

    You can easily subset the data into the car types that you will be modeling by first loading the csv into R, here is the code for how you do this:

    This loads the file into R

    df<-read.csv('uber.csv')

    The next codes is to subset the data into specific car types. The example below only has Uber 'Black' car types.

    df_black<-subset(uber_df, uber_df$name == 'Black')

    This next portion of code will be to load it into R. First, we must write this dataframe into a csv file on our computer in order to load it into R.

    write.csv(df_black, "nameofthefileyouwanttosaveas.csv")

    The file will appear in you working directory. If you are not familiar with your working directory. Run this code:

    getwd()

    The output will be the file path to your working directory. You will find the file you just created in that folder.

    Inspiration

    Your data will be in front of the world's largest data science community. What questions do you want to see answered?

  6. R And R Export Import Specialities Importer/Buyer Data in USA, R And R...

    • seair.co.in
    Updated Apr 19, 2025
    + more versions
    Share
    FacebookFacebook
    TwitterTwitter
    Email
    Click to copy link
    Link copied
    Close
    Cite
    Seair Exim (2025). R And R Export Import Specialities Importer/Buyer Data in USA, R And R Export Import Specialities Imports Data [Dataset]. https://www.seair.co.in
    Explore at:
    .bin, .xml, .csv, .xlsAvailable download formats
    Dataset updated
    Apr 19, 2025
    Dataset provided by
    Authors
    Seair Exim
    Area covered
    United States
    Description

    Find details of R And R Export Import Specialities Buyer/importer data in US (United States) with product description, price, shipment date, quantity, imported products list, major us ports name, overseas suppliers/exporters name etc. at sear.co.in.

  7. f

    How does cognitive load affect social interactions? Dataset and Analysis

    • figshare.com
    txt
    Updated Jan 18, 2016
    Share
    FacebookFacebook
    TwitterTwitter
    Email
    Click to copy link
    Link copied
    Close
    Cite
    Kathryn Mills (2016). How does cognitive load affect social interactions? Dataset and Analysis [Dataset]. http://doi.org/10.6084/m9.figshare.757787.v2
    Explore at:
    txtAvailable download formats
    Dataset updated
    Jan 18, 2016
    Dataset provided by
    figshare
    Authors
    Kathryn Mills
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Description

    Project abstract: Many situations involve processing social and non-social information simultaneously. However, is not known how performance is affected in such situations. Here, we examined how our ability to process social information is affected by the need to keep track of non-social information. Participants were instructed to carry out two tasks within each trial. The social task involved referential communication – requiring participants to use social cues to guide their decisions. At the same time, cognitive load was manipulated by requiring participants to remember non-social information in the form of either one or three two-digit numbers visually presented before each social task stimulus. Results indicate that the cognitive demands of simultaneously processing social and non-social information impair social information processing. Specifically, keeping in mind three numbers slowed participants' ability to use another person's perspective to guide decisions. These results suggest that social information processing requires domain-general resources that are depleted under cognitive load. Data: These files include our dataset, as well as the scripts used to analyze the data and create graphs of the results. You will need to download R (http://www.r-project.org/) to use these files. Data are from 29 adult participants. Participants completed an adapted version of the “Director Task” (Dumontheil, Hillebrandt, Apperly, & Blakemore, 2012) with an embedded working memory (WM) Task component. Afterwards, participants completed a verbal reverse digit-span task as a measure of WM capacity and the Interpersonal Reactivity Index questionnaire to assess individual differences in trait perspective taking (Davis, 1980). Data Analysis: We used the lme4 package in R (Bates, Maechler, & Bolker, 2013) to perform a linear mixed effects analysis on the relationship between our factors of interest and accuracy and RT for both tasks. RT data from correct trials only were analyzed. To create approximately normally distributed residuals, we used a log or reciprocal function to transform RT data. We performed a two-step procedure: first, we created a global model including main and interactive effects of cognitive load (low vs. high), condition (Director Present vs. Director Absent), trial type (1-object vs. 3-object), and perspective (same vs. different) as fixed effects, and each model included a random intercept for each participant. We then compared all possible combinations[1] of the variables within our global model using an automated model selection procedure (MuMIn1.9.0; Barton, 2013). Models were ranked using Second-order Akaike Information Criterion (AICc; Burnham & Anderson, 2002). Second, after determining the best fitting model for each outcome of interest, we tested whether WM capacity or trait perspective taking explained any additional variance through likelihood ratio tests. All p-values were obtained by likelihood ratio tests comparing the best fitting model against a baseline model.[1] Interactions were always accompanied by their respective main effects and all lower order terms

    Update (August 8, 2013): There was a minor error in the original SocialDualTaskData.R file, which has now been corrected.

  8. d

    R-LOADEST files to produce results in the Heart River Basin, North Dakota,...

    • catalog.data.gov
    • data.usgs.gov
    Updated Jul 6, 2024
    + more versions
    Share
    FacebookFacebook
    TwitterTwitter
    Email
    Click to copy link
    Link copied
    Close
    Cite
    U.S. Geological Survey (2024). R-LOADEST files to produce results in the Heart River Basin, North Dakota, 1970-2020 [Dataset]. https://catalog.data.gov/dataset/r-loadest-files-to-produce-results-in-the-heart-river-basin-north-dakota-1970-2020
    Explore at:
    Dataset updated
    Jul 6, 2024
    Dataset provided by
    United States Geological Surveyhttp://www.usgs.gov/
    Area covered
    Heart River, North Dakota
    Description

    This child page contains a zipped folder which contains all of the items necessary to run load estimation using R-LOADEST to produce results that are published in U.S. Geological Survey Investigations Report 2021-XXXX [Tatge, W.S., Nustad, R.A., and Galloway, J.M., 2021, Evaluation of Salinity and Nutrient Conditions in the Heart River Basin, North Dakota, 1970-2020: U.S. Geological Survey Scientific Investigations Report 2021-XXXX, XX p]. The folder contains an allsiteinfo.table.csv file, a "datain" folder, and a "scripts" folder. The allsiteinfo.table.csv file can be used to cross reference the sites with the main report (Tatge and others, 2021). The "datain" folder contains all the input data necessary to reproduce the load estimation results. The naming convention in the "datain" folder is site_MI_rloadest or site_NUT_rloadest for either the major ion loads or the nutrient loads. The .Rdata files are used in the scripts to run the estimations and the .csv files can be used to look at the data. The "scripts" folder contains the written R scripts to produce the results of the load estimation from the main report. R-LOADEST is a software package for analyzing loads in streams and an accompanying report (Runkel and others, 2004) serves as the formal documentation for R-LOADEST. The package is a collection of functions written in R (R Development Core Team, 2019), an open source language and a general environment for statistical computing and graphics. The following system requirements are necessary for producing results: Windows 10 operating system R (version 3.4 or later; 64-bit recommended) RStudio (version 1.1.456 or later) R-LOADEST program (available at https://github.com/USGS-R/rloadest). Runkel, R.L., Crawford, C.G., and Cohn, T.A., 2004, Load Estimator (LOADEST): A FORTRAN Program for Estimating Constituent Loads in Streams and Rivers: U.S. Geological Survey Techniques and Methods Book 4, Chapter A5, 69 p., [Also available at https://pubs.usgs.gov/tm/2005/tm4A5/pdf/508final.pdf.] R Development Core Team, 2019, R—A language and environment for statistical computing: Vienna, Austria, R Foundation for Statistical Computing, accessed December 7, 2020, at https://www.r-project.org.

  9. R 100 Hydrocarbon Resin Import Data India – Buyers & Importers List

    • seair.co.in
    Share
    FacebookFacebook
    TwitterTwitter
    Email
    Click to copy link
    Link copied
    Close
    Cite
    Seair Exim, R 100 Hydrocarbon Resin Import Data India – Buyers & Importers List [Dataset]. https://www.seair.co.in
    Explore at:
    .bin, .xml, .csv, .xlsAvailable download formats
    Dataset provided by
    Authors
    Seair Exim
    Area covered
    India
    Description

    Subscribers can find out export and import data of 23 countries by HS code or product’s name. This demo is helpful for market analysis.

  10. Seair Exim Solutions

    • seair.co.in
    Updated Dec 12, 2024
    + more versions
    Share
    FacebookFacebook
    TwitterTwitter
    Email
    Click to copy link
    Link copied
    Close
    Cite
    Seair Exim (2024). Seair Exim Solutions [Dataset]. https://www.seair.co.in
    Explore at:
    .bin, .xml, .csv, .xlsAvailable download formats
    Dataset updated
    Dec 12, 2024
    Dataset provided by
    Authors
    Seair Exim
    Area covered
    United States
    Description

    Subscribers can find out export and import data of 23 countries by HS code or product’s name. This demo is helpful for market analysis.

  11. Database of Uniaxial Cyclic and Tensile Coupon Tests for Structural Metallic...

    • zenodo.org
    • data.niaid.nih.gov
    bin, csv, zip
    Updated Dec 24, 2022
    Share
    FacebookFacebook
    TwitterTwitter
    Email
    Click to copy link
    Link copied
    Close
    Cite
    Alexander R. Hartloper; Alexander R. Hartloper; Selimcan Ozden; Albano de Castro e Sousa; Dimitrios G. Lignos; Dimitrios G. Lignos; Selimcan Ozden; Albano de Castro e Sousa (2022). Database of Uniaxial Cyclic and Tensile Coupon Tests for Structural Metallic Materials [Dataset]. http://doi.org/10.5281/zenodo.6965147
    Explore at:
    bin, zip, csvAvailable download formats
    Dataset updated
    Dec 24, 2022
    Dataset provided by
    Zenodohttp://zenodo.org/
    Authors
    Alexander R. Hartloper; Alexander R. Hartloper; Selimcan Ozden; Albano de Castro e Sousa; Dimitrios G. Lignos; Dimitrios G. Lignos; Selimcan Ozden; Albano de Castro e Sousa
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Description

    Database of Uniaxial Cyclic and Tensile Coupon Tests for Structural Metallic Materials

    Background

    This dataset contains data from monotonic and cyclic loading experiments on structural metallic materials. The materials are primarily structural steels and one iron-based shape memory alloy is also included. Summary files are included that provide an overview of the database and data from the individual experiments is also included.

    The files included in the database are outlined below and the format of the files is briefly described. Additional information regarding the formatting can be found through the post-processing library (https://github.com/ahartloper/rlmtp/tree/master/protocols).

    Usage

    • The data is licensed through the Creative Commons Attribution 4.0 International.
    • If you have used our data and are publishing your work, we ask that you please reference both:
      1. this database through its DOI, and
      2. any publication that is associated with the experiments. See the Overall_Summary and Database_References files for the associated publication references.

    Included Files

    • Overall_Summary_2022-08-25_v1-0-0.csv: summarises the specimen information for all experiments in the database.
    • Summarized_Mechanical_Props_Campaign_2022-08-25_v1-0-0.csv: summarises the average initial yield stress and average initial elastic modulus per campaign.
    • Unreduced_Data-#_v1-0-0.zip: contain the original (not downsampled) data
      • Where # is one of: 1, 2, 3, 4, 5, 6. The unreduced data is broken into separate archives because of upload limitations to Zenodo. Together they provide all the experimental data.
      • We recommend you un-zip all the folders and place them in one "Unreduced_Data" directory similar to the "Clean_Data"
      • The experimental data is provided through .csv files for each test that contain the processed data. The experiments are organised by experimental campaign and named by load protocol and specimen. A .pdf file accompanies each test showing the stress-strain graph.
      • There is a "db_tag_clean_data_map.csv" file that is used to map the database summary with the unreduced data.
      • The computed yield stresses and elastic moduli are stored in the "yield_stress" directory.
    • Clean_Data_v1-0-0.zip: contains all the downsampled data
      • The experimental data is provided through .csv files for each test that contain the processed data. The experiments are organised by experimental campaign and named by load protocol and specimen. A .pdf file accompanies each test showing the stress-strain graph.
      • There is a "db_tag_clean_data_map.csv" file that is used to map the database summary with the clean data.
      • The computed yield stresses and elastic moduli are stored in the "yield_stress" directory.
    • Database_References_v1-0-0.bib
      • Contains a bibtex reference for many of the experiments in the database. Corresponds to the "citekey" entry in the summary files.

    File Format: Downsampled Data

    These are the "LP_

    • The header of the first column is empty: the first column corresponds to the index of the sample point in the original (unreduced) data
    • Time[s]: time in seconds since the start of the test
    • e_true: true strain
    • Sigma_true: true stress in MPa
    • (optional) Temperature[C]: the surface temperature in degC

    These data files can be easily loaded using the pandas library in Python through:

    import pandas
    data = pandas.read_csv(data_file, index_col=0)

    The data is formatted so it can be used directly in RESSPyLab (https://github.com/AlbanoCastroSousa/RESSPyLab). Note that the column names "e_true" and "Sigma_true" were kept for backwards compatibility reasons with RESSPyLab.

    File Format: Unreduced Data

    These are the "LP_

    • The first column is the index of each data point
    • S/No: sample number recorded by the DAQ
    • System Date: Date and time of sample
    • Time[s]: time in seconds since the start of the test
    • C_1_Force[kN]: load cell force
    • C_1_Déform1[mm]: extensometer displacement
    • C_1_Déplacement[mm]: cross-head displacement
    • Eng_Stress[MPa]: engineering stress
    • Eng_Strain[]: engineering strain
    • e_true: true strain
    • Sigma_true: true stress in MPa
    • (optional) Temperature[C]: specimen surface temperature in degC

    The data can be loaded and used similarly to the downsampled data.

    File Format: Overall_Summary

    The overall summary file provides data on all the test specimens in the database. The columns include:

    • hidden_index: internal reference ID
    • grade: material grade
    • spec: specifications for the material
    • source: base material for the test specimen
    • id: internal name for the specimen
    • lp: load protocol
    • size: type of specimen (M8, M12, M20)
    • gage_length_mm_: unreduced section length in mm
    • avg_reduced_dia_mm_: average measured diameter for the reduced section in mm
    • avg_fractured_dia_top_mm_: average measured diameter of the top fracture surface in mm
    • avg_fractured_dia_bot_mm_: average measured diameter of the bottom fracture surface in mm
    • fy_n_mpa_: nominal yield stress
    • fu_n_mpa_: nominal ultimate stress
    • t_a_deg_c_: ambient temperature in degC
    • date: date of test
    • investigator: person(s) who conducted the test
    • location: laboratory where test was conducted
    • machine: setup used to conduct test
    • pid_force_k_p, pid_force_t_i, pid_force_t_d: PID parameters for force control
    • pid_disp_k_p, pid_disp_t_i, pid_disp_t_d: PID parameters for displacement control
    • pid_extenso_k_p, pid_extenso_t_i, pid_extenso_t_d: PID parameters for extensometer control
    • citekey: reference corresponding to the Database_References.bib file
    • yield_stress_mpa_: computed yield stress in MPa
    • elastic_modulus_mpa_: computed elastic modulus in MPa
    • fracture_strain: computed average true strain across the fracture surface
    • c,si,mn,p,s,n,cu,mo,ni,cr,v,nb,ti,al,b,zr,sn,ca,h,fe: chemical compositions in units of %mass
    • file: file name of corresponding clean (downsampled) stress-strain data

    File Format: Summarized_Mechanical_Props_Campaign

    Meant to be loaded in Python as a pandas DataFrame with multi-indexing, e.g.,

    tab1 = pd.read_csv('Summarized_Mechanical_Props_Campaign_' + date + version + '.csv',
              index_col=[0, 1, 2, 3], skipinitialspace=True, header=[0, 1],
              keep_default_na=False, na_values='')
    • citekey: reference in "Campaign_References.bib".
    • Grade: material grade.
    • Spec.: specifications (e.g., J2+N).
    • Yield Stress [MPa]: initial yield stress in MPa
      • size, count, mean, coefvar: number of experiments in campaign, number of experiments in mean, mean value for campaign, coefficient of variation for campaign
    • Elastic Modulus [MPa]: initial elastic modulus in MPa
      • size, count, mean, coefvar: number of experiments in campaign, number of experiments in mean, mean value for campaign, coefficient of variation for campaign

    Caveats

    • The files in the following directories were tested before the protocol was established. Therefore, only the true stress-strain is available for each:
      • A500
      • A992_Gr50
      • BCP325
      • BCR295
      • HYP400
      • S460NL
      • S690QL/25mm
      • S355J2_Plates/S355J2_N_25mm and S355J2_N_50mm
  12. d

    R programming code for analyzing output from the Stochastic Empirical...

    • catalog.data.gov
    • data.usgs.gov
    Updated Jul 6, 2024
    Share
    FacebookFacebook
    TwitterTwitter
    Email
    Click to copy link
    Link copied
    Close
    Cite
    U.S. Geological Survey (2024). R programming code for analyzing output from the Stochastic Empirical Loading Dilution Model created for U.S. Geological Survey Scientific Investigations Report 2019-5053, 116 p., https://doi.org/10.3133/sir20195053 [Dataset]. https://catalog.data.gov/dataset/r-programming-code-for-analyzing-output-from-the-stochastic-empirical-loading-dilution-mod
    Explore at:
    Dataset updated
    Jul 6, 2024
    Dataset provided by
    United States Geological Surveyhttp://www.usgs.gov/
    Description

    This R script can be used to analyze SELDM results. The script is specifically tailored for the SELDM simulations used in the publication: Stonewall, A.J., and Granato, G.E., 2018, Assessing potential effects of highway and urban runoff on receiving streams in total maximum daily load watersheds in Oregon using the Stochastic Empirical Loading and Dilution Model: U.S. Geological Survey Scientific Investigations Report 2019-5053, 116 p., https://doi.org/10.3133/sir20195053

  13. d

    Health and Retirement Study (HRS)

    • search.dataone.org
    Updated Nov 21, 2023
    Share
    FacebookFacebook
    TwitterTwitter
    Email
    Click to copy link
    Link copied
    Close
    Cite
    Damico, Anthony (2023). Health and Retirement Study (HRS) [Dataset]. http://doi.org/10.7910/DVN/ELEKOY
    Explore at:
    Dataset updated
    Nov 21, 2023
    Dataset provided by
    Harvard Dataverse
    Authors
    Damico, Anthony
    Description

    analyze the health and retirement study (hrs) with r the hrs is the one and only longitudinal survey of american seniors. with a panel starting its third decade, the current pool of respondents includes older folks who have been interviewed every two years as far back as 1992. unlike cross-sectional or shorter panel surveys, respondents keep responding until, well, death d o us part. paid for by the national institute on aging and administered by the university of michigan's institute for social research, if you apply for an interviewer job with them, i hope you like werther's original. figuring out how to analyze this data set might trigger your fight-or-flight synapses if you just start clicking arou nd on michigan's website. instead, read pages numbered 10-17 (pdf pages 12-19) of this introduction pdf and don't touch the data until you understand figure a-3 on that last page. if you start enjoying yourself, here's the whole book. after that, it's time to register for access to the (free) data. keep your username and password handy, you'll need it for the top of the download automation r script. next, look at this data flowchart to get an idea of why the data download page is such a righteous jungle. but wait, good news: umich recently farmed out its data management to the rand corporation, who promptly constructed a giant consolidated file with one record per respondent across the whole panel. oh so beautiful. the rand hrs files make much of the older data and syntax examples obsolete, so when you come across stuff like instructions on how to merge years, you can happily ignore them - rand has done it for you. the health and retirement study only includes noninstitutionalized adults when new respondents get added to the panel (as they were in 1992, 1993, 1998, 2004, and 2010) but once they're in, they're in - respondents have a weight of zero for interview waves when they were nursing home residents; but they're still responding and will continue to contribute to your statistics so long as you're generalizing about a population from a previous wave (for example: it's possible to compute "among all americans who were 50+ years old in 1998, x% lived in nursing homes by 2010"). my source for that 411? page 13 of the design doc. wicked. this new github repository contains five scripts: 1992 - 2010 download HRS microdata.R loop through every year and every file, download, then unzip everything in one big party impor t longitudinal RAND contributed files.R create a SQLite database (.db) on the local disk load the rand, rand-cams, and both rand-family files into the database (.db) in chunks (to prevent overloading ram) longitudinal RAND - analysis examples.R connect to the sql database created by the 'import longitudinal RAND contributed files' program create tw o database-backed complex sample survey object, using a taylor-series linearization design perform a mountain of analysis examples with wave weights from two different points in the panel import example HRS file.R load a fixed-width file using only the sas importation script directly into ram with < a href="http://blog.revolutionanalytics.com/2012/07/importing-public-data-with-sas-instructions-into-r.html">SAScii parse through the IF block at the bottom of the sas importation script, blank out a number of variables save the file as an R data file (.rda) for fast loading later replicate 2002 regression.R connect to the sql database created by the 'import longitudinal RAND contributed files' program create a database-backed complex sample survey object, using a taylor-series linearization design exactly match the final regression shown in this document provided by analysts at RAND as an update of the regression on pdf page B76 of this document . click here to view these five scripts for more detail about the health and retirement study (hrs), visit: michigan's hrs homepage rand's hrs homepage the hrs wikipedia page a running list of publications using hrs notes: exemplary work making it this far. as a reward, here's the detailed codebook for the main rand hrs file. note that rand also creates 'flat files' for every survey wave, but really, most every analysis you c an think of is possible using just the four files imported with the rand importation script above. if you must work with the non-rand files, there's an example of how to import a single hrs (umich-created) file, but if you wish to import more than one, you'll have to write some for loops yourself. confidential to sas, spss, stata, and sudaan users: a tidal wave is coming. you can get water up your nose and be dragged out to sea, or you can grab a surf board. time to transition to r. :D

  14. f

    Open data: Visual load effects on the auditory steady-state responses to...

    • su.figshare.com
    • researchdata.se
    • +1more
    txt
    Updated May 30, 2023
    Share
    FacebookFacebook
    TwitterTwitter
    Email
    Click to copy link
    Link copied
    Close
    Cite
    Stefan Wiens; Malina Szychowska (2023). Open data: Visual load effects on the auditory steady-state responses to 20-, 40-, and 80-Hz amplitude-modulated tones [Dataset]. http://doi.org/10.17045/sthlmuni.12582002.v1
    Explore at:
    txtAvailable download formats
    Dataset updated
    May 30, 2023
    Dataset provided by
    Stockholm University
    Authors
    Stefan Wiens; Malina Szychowska
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Description

    The main results file are saved separately:- ASSR2.html: R output of the main analyses (N = 33)- ASSR2_subset.html: R output of the main analyses for the smaller sample (N = 25)FIGSHARE METADATACategories- Biological psychology- Neuroscience and physiological psychology- Sensory processes, perception, and performanceKeywords- crossmodal attention- electroencephalography (EEG)- early-filter theory- task difficulty- envelope following responseReferences- https://doi.org/10.17605/OSF.IO/6FHR8- https://github.com/stamnosslin/mn- https://doi.org/10.17045/sthlmuni.4981154.v3- https://biosemi.com/- https://www.python.org/- https://mne.tools/stable/index.html#- https://www.r-project.org/- https://rstudio.com/products/rstudio/GENERAL INFORMATION1. Title of Dataset:Open data: Visual load effects on the auditory steady-state responses to 20-, 40-, and 80-Hz amplitude-modulated tones2. Author Information A. Principal Investigator Contact Information Name: Stefan Wiens Institution: Department of Psychology, Stockholm University, Sweden Internet: https://www.su.se/profiles/swiens-1.184142 Email: sws@psychology.su.se B. Associate or Co-investigator Contact Information Name: Malina Szychowska Institution: Department of Psychology, Stockholm University, Sweden Internet: https://www.researchgate.net/profile/Malina_Szychowska Email: malina.szychowska@psychology.su.se3. Date of data collection: Subjects (N = 33) were tested between 2019-11-15 and 2020-03-12.4. Geographic location of data collection: Department of Psychology, Stockholm, Sweden5. Information about funding sources that supported the collection of the data:Swedish Research Council (Vetenskapsrådet) 2015-01181SHARING/ACCESS INFORMATION1. Licenses/restrictions placed on the data: CC BY 4.02. Links to publications that cite or use the data: Szychowska M., & Wiens S. (2020). Visual load effects on the auditory steady-state responses to 20-, 40-, and 80-Hz amplitude-modulated tones. Submitted manuscript.The study was preregistered:https://doi.org/10.17605/OSF.IO/6FHR83. Links to other publicly accessible locations of the data: N/A4. Links/relationships to ancillary data sets: N/A5. Was data derived from another source? No 6. Recommended citation for this dataset: Wiens, S., & Szychowska M. (2020). Open data: Visual load effects on the auditory steady-state responses to 20-, 40-, and 80-Hz amplitude-modulated tones. Stockholm: Stockholm University. https://doi.org/10.17045/sthlmuni.12582002DATA & FILE OVERVIEWFile List:The files contain the raw data, scripts, and results of main and supplementary analyses of an electroencephalography (EEG) study. Links to the hardware and software are provided under methodological information.ASSR2_experiment_scripts.zip: contains the Python files to run the experiment. ASSR2_rawdata.zip: contains raw datafiles for each subject- data_EEG: EEG data in bdf format (generated by Biosemi)- data_log: logfiles of the EEG session (generated by Python)ASSR2_EEG_scripts.zip: Python-MNE scripts to process the EEG dataASSR2_EEG_preprocessed_data.zip: EEG data in fif format after preprocessing with Python-MNE scriptsASSR2_R_scripts.zip: R scripts to analyze the data together with the main datafiles. The main files in the folder are: - ASSR2.html: R output of the main analyses- ASSR2_subset.html: R output of the main analyses but after excluding eight subjects who were recorded as pilots before preregistering the studyASSR2_results.zip: contains all figures and tables that are created by Python-MNE and R.METHODOLOGICAL INFORMATION1. Description of methods used for collection/generation of data:The auditory stimuli were amplitude-modulated tones with a carrier frequency (fc) of 500 Hz and modulation frequencies (fm) of 20.48 Hz, 40.96 Hz, or 81.92 Hz. The experiment was programmed in python: https://www.python.org/ and used extra functions from here: https://github.com/stamnosslin/mnThe EEG data were recorded with an Active Two BioSemi system (BioSemi, Amsterdam, Netherlands; www.biosemi.com) and saved in .bdf format.For more information, see linked publication.2. Methods for processing the data:We conducted frequency analyses and computed event-related potentials. See linked publication3. Instrument- or software-specific information needed to interpret the data:MNE-Python (Gramfort A., et al., 2013): https://mne.tools/stable/index.html#Rstudio used with R (R Core Team, 2020): https://rstudio.com/products/rstudio/Wiens, S. (2017). Aladins Bayes Factor in R (Version 3). https://www.doi.org/10.17045/sthlmuni.4981154.v34. Standards and calibration information, if appropriate:For information, see linked publication.5. Environmental/experimental conditions:For information, see linked publication.6. Describe any quality-assurance procedures performed on the data:For information, see linked publication.7. People involved with sample collection, processing, analysis and/or submission:- Data collection: Malina Szychowska with assistance from Jenny Arctaedius.- Data processing, analysis, and submission: Malina Szychowska and Stefan WiensDATA-SPECIFIC INFORMATION:All relevant information can be found in the MNE-Python and R scripts (in EEG_scripts and analysis_scripts folders) that process the raw data. For example, we added notes to explain what different variables mean.

  15. f

    Open data: Frequency mismatch negativity and visual load

    • su.figshare.com
    • researchdata.se
    • +1more
    pdf
    Updated Feb 23, 2021
    + more versions
    Share
    FacebookFacebook
    TwitterTwitter
    Email
    Click to copy link
    Link copied
    Close
    Cite
    Stefan Wiens; Erik van Berlekom; Malina Szychowska; Rasmus Eklund (2021). Open data: Frequency mismatch negativity and visual load [Dataset]. http://doi.org/10.17045/sthlmuni.7016369.v2
    Explore at:
    pdfAvailable download formats
    Dataset updated
    Feb 23, 2021
    Dataset provided by
    Stockholm University
    Authors
    Stefan Wiens; Erik van Berlekom; Malina Szychowska; Rasmus Eklund
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Description

    Wiens, S., van Berlekom, E., Szychowska, M., & Eklund, R. (2019). Visual Perceptual Load Does Not Affect the Frequency Mismatch Negativity. Frontiers in Psychology, 10(1970). doi:10.3389/fpsyg.2019.01970We manipulated visual perceptual load (high and low load) while we recorded electroencephalography. Event-related potentials (ERPs) were computed from these data.OSF_*.pdf contains the preregistration at open science framework (osf).https://doi.org/10.17605/OSF.IO/EWG9XERP_2019_rawdata_bdf.zip contains the raw eeg data files that were recorded with a biosemi system (www.biosemi.com). The files can be opened in matlab with the fieldtrip toolbox. https://www.mathworks.com/products/matlab.htmlhttp://www.fieldtriptoolbox.org/ERP_2019_visual_load_fieldtrip_scripts.zip contains all the matlab scripts that were used to process the ERP data with the toolbox fieldtrip. http://www.fieldtriptoolbox.org/ERP_2019_fieldtrip_mat_*.zip contain the final, preprocessed individual data files. They can be opened with matlab.ERP_2019_visual_load_python_scripts.zip contains the python scripts for the main task. They need python (https://www.python.org/) and psychopy (http://www.psychopy.org/)ERP_2019_visual_load_wmc_R_scripts.zip contains the R scripts to process the working memory capacity (wmc) data. https://www.r-project.org/.ERP_2019_visual_load_R_scripts.zip contains the R scripts to analyze the data and the output files with figures (eg scatterplots). https://www.r-project.org/.

  16. Global import data of R Tyre

    • volza.com
    csv
    Updated Jul 16, 2025
    + more versions
    Share
    FacebookFacebook
    TwitterTwitter
    Email
    Click to copy link
    Link copied
    Close
    Cite
    Volza FZ LLC (2025). Global import data of R Tyre [Dataset]. https://www.volza.com/imports-uganda/uganda-import-data-of-r+tyre
    Explore at:
    csvAvailable download formats
    Dataset updated
    Jul 16, 2025
    Dataset provided by
    Authors
    Volza FZ LLC
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Variables measured
    Count of importers, Sum of import value, 2014-01-01/2021-09-30, Count of import shipments
    Description

    291 Global import shipment records of R Tyre with prices, volume & current Buyer's suppliers relationships based on actual Global export trade database.

  17. Load profile data of 50 industrial plants in Germany for one year

    • zenodo.org
    • explore.openaire.eu
    • +1more
    csv
    Updated Jun 18, 2020
    Share
    FacebookFacebook
    TwitterTwitter
    Email
    Click to copy link
    Link copied
    Close
    Cite
    Fritz Braeuer; Fritz Braeuer (2020). Load profile data of 50 industrial plants in Germany for one year [Dataset]. http://doi.org/10.5281/zenodo.3899018
    Explore at:
    csvAvailable download formats
    Dataset updated
    Jun 18, 2020
    Dataset provided by
    Zenodohttp://zenodo.org/
    Authors
    Fritz Braeuer; Fritz Braeuer
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Description

    This dataset holds the electric load profiles of 50 small and mid-size enterprises in Germany. The load profiles are in 15-minute time resolution for one year. The load is shown in kW as an average over 15 minutes.

    The dataset is divided into two:

    • LoadProfile_20IPs_2016 shows load profiles of 20 industrial plants (IP) for the year 2016.
    • LoadProfile_30IPs_2017 shows load profiles of 30 industrial plants (IP) for the year 2017.

    The IPs from the dataset for 2016 do not reappear in the dataset for 2017.

    The dataset LoadProfile_20IPs_2016 is evaluated in the following publication:

    • Covic, N., Braeuer, F., McKenna, R., Pandzic, H., Optimizing Industrial Facilities’ Active Participation
      in Electricity Markets under Uncertainty, 2020.

    Both datasets together are evaluated in multiple publications:

    • Braeuer, F., Finck, R., McKenna, R., Comparing empirical and model-based approaches for calculating dynamic grid emission factors: An application to CO2-minimizing storage dispatch in Germany, Journal of Cleaner Production, Volume 266, 2020, 121588, ISSN 0959-6526, https://doi.org/10.1016/j.jclepro.2020.121588.
    • Braeuer, F., Rominger, J., McKenna, R.,Fichtner, W., Battery storage systems: An economic model-based analysis of parallel revenue streams and general implications for industry, Applied Energy, Volume 239, 2019, Pages 1424-1440, ISSN 0306-2619, https://doi.org/10.1016/j.apenergy.2019.01.050.

    Enjoy.

  18. Global import data of Blue R

    • volza.com
    csv
    Updated Jul 15, 2025
    + more versions
    Share
    FacebookFacebook
    TwitterTwitter
    Email
    Click to copy link
    Link copied
    Close
    Cite
    Volza FZ LLC (2025). Global import data of Blue R [Dataset]. https://www.volza.com/imports-egypt/egypt-import-data-of-blue+r
    Explore at:
    csvAvailable download formats
    Dataset updated
    Jul 15, 2025
    Dataset provided by
    Authors
    Volza FZ LLC
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Variables measured
    Count of importers, Sum of import value, 2014-01-01/2021-09-30, Count of import shipments
    Description

    225 Global import shipment records of Blue R with prices, volume & current Buyer's suppliers relationships based on actual Global export trade database.

  19. Global import data of Motorcycle R

    • volza.com
    csv
    Updated Jun 30, 2025
    Share
    FacebookFacebook
    TwitterTwitter
    Email
    Click to copy link
    Link copied
    Close
    Cite
    Volza FZ LLC (2025). Global import data of Motorcycle R [Dataset]. https://www.volza.com/imports-united-states/united-states-import-data-of-motorcycle+r
    Explore at:
    csvAvailable download formats
    Dataset updated
    Jun 30, 2025
    Dataset provided by
    Authors
    Volza FZ LLC
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Variables measured
    Count of importers, Sum of import value, 2014-01-01/2021-09-30, Count of import shipments
    Description

    1310 Global import shipment records of Motorcycle R with prices, volume & current Buyer's suppliers relationships based on actual Global export trade database.

  20. Global import data of Blue R

    • volza.com
    csv
    Updated Jul 15, 2025
    Share
    FacebookFacebook
    TwitterTwitter
    Email
    Click to copy link
    Link copied
    Close
    Cite
    Volza FZ LLC (2025). Global import data of Blue R [Dataset]. https://www.volza.com/imports-united-kingdom/united-kingdom-import-data-of-blue+r
    Explore at:
    csvAvailable download formats
    Dataset updated
    Jul 15, 2025
    Dataset provided by
    Authors
    Volza FZ LLC
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Variables measured
    Count of importers, Sum of import value, 2014-01-01/2021-09-30, Count of import shipments
    Description

    688 Global import shipment records of Blue R with prices, volume & current Buyer's suppliers relationships based on actual Global export trade database.

Share
FacebookFacebook
TwitterTwitter
Email
Click to copy link
Link copied
Close
Cite
Kingsley Okoye; Samira Hosseini (2023). Collection of example datasets used for the book - R Programming - Statistical Data Analysis in Research [Dataset]. http://doi.org/10.6084/m9.figshare.24728073.v1

Collection of example datasets used for the book - R Programming - Statistical Data Analysis in Research

Explore at:
txtAvailable download formats
Dataset updated
Dec 4, 2023
Dataset provided by
figshare
Authors
Kingsley Okoye; Samira Hosseini
License

Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
License information was derived automatically

Description

This book is written for statisticians, data analysts, programmers, researchers, teachers, students, professionals, and general consumers on how to perform different types of statistical data analysis for research purposes using the R programming language. R is an open-source software and object-oriented programming language with a development environment (IDE) called RStudio for computing statistics and graphical displays through data manipulation, modelling, and calculation. R packages and supported libraries provides a wide range of functions for programming and analyzing of data. Unlike many of the existing statistical softwares, R has the added benefit of allowing the users to write more efficient codes by using command-line scripting and vectors. It has several built-in functions and libraries that are extensible and allows the users to define their own (customized) functions on how they expect the program to behave while handling the data, which can also be stored in the simple object system.For all intents and purposes, this book serves as both textbook and manual for R statistics particularly in academic research, data analytics, and computer programming targeted to help inform and guide the work of the R users or statisticians. It provides information about different types of statistical data analysis and methods, and the best scenarios for use of each case in R. It gives a hands-on step-by-step practical guide on how to identify and conduct the different parametric and non-parametric procedures. This includes a description of the different conditions or assumptions that are necessary for performing the various statistical methods or tests, and how to understand the results of the methods. The book also covers the different data formats and sources, and how to test for reliability and validity of the available datasets. Different research experiments, case scenarios and examples are explained in this book. It is the first book to provide a comprehensive description and step-by-step practical hands-on guide to carrying out the different types of statistical analysis in R particularly for research purposes with examples. Ranging from how to import and store datasets in R as Objects, how to code and call the methods or functions for manipulating the datasets or objects, factorization, and vectorization, to better reasoning, interpretation, and storage of the results for future use, and graphical visualizations and representations. Thus, congruence of Statistics and Computer programming for Research.

Search
Clear search
Close search
Google apps
Main menu