5 Matching Annotations
  1. Feb 2020
  2. r4ds.had.co.nz r4ds.had.co.nz
    R for Data Science
    1
    1. daaronr 14 Feb 2020
      commas <- function(...) stringr::str_c(..., collapse = ", ")

      no braces needed for function on a single line

      r4ds r4ds_slackers
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    r4ds.had.co.nz/functions.html
  3. r4ds.had.co.nz r4ds.had.co.nz
    R for Data Science
    2
    1. daaronr 14 Feb 2020
      it’s the same as the input!

      because we want to modify columns in place

      r4ds_slackers r4ds
    2. daaronr 14 Feb 2020
      Compute the mean of every column in mtcars. 
      output <- vector("double", ncol(mtcars))  # 1. output
for (i in seq_along(mtcars)) {            # 2. sequence
  output[[i]] <- mean(mtcars[[i]])      # 3. body
}
      r4ds r4ds_slackers exercises
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    r4ds.had.co.nz/iteration.html
  4. Jul 2019
  5. r4ds.had.co.nz r4ds.had.co.nz
    R for Data Science
    2
    1. daaronr 31 Jul 2019
      The book is written in RMarkdown with bookdown. It is automatically rebuilt from source by travis. R4DS is a collaborative effort and many people have contributed fixes and improvements via pull request.

      anyone other r4ds_slackers using bookdown?

      r4ds_slackers
    2. daaronr 31 Jul 2019

      Anyone in the Slack group interested in sharing comments directly on this page via this hypothesis tool? We can use the tag "r4ds_slackers"

      r4ds_slackers
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