Learning R from Scratch

Richard Treves
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about learning R programming

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  1. 21/08/2020

    Ep5] Cleaning Data, loops and Vectorisation

    2] Cleaning Data: To remove a column ‘col’ in a dataframe ‘data’ using null, the command is: data$col - NULL How to apply hash strings (a series of unreadable text) to replace important data e.g. full names. https://cran.r-project.org/web/packages/openssl/vignettes/crypto_hashing.html 3] For Loops: The code I discussed For (i in 1:10){ commands to be written here in … Continue reading Ep5] Cleaning Data, loops and Vectorisation →

    11 phút

  2. 24/05/2020

    Ep4] New Moodle project, Acquiring data

    This week I discuss a new Moodle project and how I’ve been using R to process and visualise students use of educational materials. Part 1] A New Problem What is Moodle? Note that my University doesn’t use the latest version of Moodle. Part 2] Acquiring data How to download logs from Moodle Part 3] General … Continue reading Ep4] New Moodle project, Acquiring data →

    11 phút

  3. 17/02/2020

    Ep3] Data Frames, If & Scripts

    Shownotes R from Scratch Ep3 1] Packages HowTo install into RStudio  2] Dataframes Introduction to dataframes 3] Scripts in R Introduction to scripts in RStudio 4] If statements in R Introduction to If statements in R 5] Cleaning data in R Introduction to cleaning data in R 7] Shiny

    16 phút

  4. 17/02/2020

    Ep2] Variables, Vectors & Loading data

    Shownotes R from Scratch Ep2 1] Variables – What is a variable? 2] Vectors – Vectors in R Tutorial 3] Projects (.RPROJ files) Using Projects in R 5] Code versus RStudio – Writing code in RStudio 6] Sankey Diagrams in R

    9 phút
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about learning R programming

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    Richard Treves
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    Learning R from Scratch