23 Answered Questions

[SOLVED] How to make a great R reproducible example?

  • 2011-05-11 11:12:02
  • Andrie
  • 206219 View
  • 2341 Score
  • 23 Answer
  • Tags:   r r-faq

12 Answered Questions

[SOLVED] How to join (merge) data frames (inner, outer, left, right)?

8 Answered Questions

[SOLVED] How to reshape data from long to wide format?

  • 2011-05-04 22:27:50
  • Steve
  • 105283 View
  • 174 Score
  • 8 Answer
  • Tags:   r reshape r-faq

3 Answered Questions

[SOLVED] Why are these numbers not equal?

5 Answered Questions

[SOLVED] Reshaping data.frame from wide to long format

7 Answered Questions

[SOLVED] How do I make a list of data frames?

10 Answered Questions

[SOLVED] How to sum a variable by group?

  • 2009-11-02 09:01:28
  • user5243421
  • 302781 View
  • 231 Score
  • 10 Answer
  • Tags:   r sorting r-faq

9 Answered Questions

[SOLVED] Grouping functions (tapply, by, aggregate) and the *apply family

  • 2010-08-17 18:31:12
  • grautur
  • 347322 View
  • 903 Score
  • 9 Answer
  • Tags:   r sapply tapply r-faq

5 Answered Questions

[SOLVED] Split comma-separated strings in a column into separate rows

  • 2012-12-08 02:13:44
  • RoyalTS
  • 17774 View
  • 60 Score
  • 5 Answer
  • Tags:   r string split r-faq

5 Answered Questions

[SOLVED] How to convert a factor to integer\numeric without loss of information?

  • 2010-08-05 18:53:32
  • Adam SO
  • 581580 View
  • 458 Score
  • 5 Answer
  • Tags:   r casting r-faq

16 Answered Questions

[SOLVED] How to sort a dataframe by multiple column(s)?

9 Answered Questions

[SOLVED] How can I view the source code for a function?

  • 2013-10-07 13:58:00
  • Joshua Ulrich
  • 181672 View
  • 396 Score
  • 9 Answer
  • Tags:   r function r-faq

5 Answered Questions

[SOLVED] Dynamically select data frame columns using $ and a vector of column names

  • 2013-08-14 02:27:57
  • Samuel Song
  • 58572 View
  • 75 Score
  • 5 Answer
  • Tags:   r dataframe r-faq

9 Answered Questions

[SOLVED] Order Bars in ggplot2 bar graph

  • 2011-03-06 04:20:48
  • Julio Diaz
  • 190224 View
  • 212 Score
  • 9 Answer
  • Tags:   r ggplot2 r-faq

4 Answered Questions

6 Answered Questions

[SOLVED] Simultaneously merge multiple data.frames in a list

13 Answered Questions

2 Answered Questions

8 Answered Questions

[SOLVED] Quickly reading very large tables as dataframes

15 Answered Questions

[SOLVED] Split data frame string column into multiple columns

6 Answered Questions

11 Answered Questions

[SOLVED] Plot with 2 y axes, one y axis on the left, and another y axis on the right

  • 2010-06-23 05:52:19
  • lokheart
  • 165582 View
  • 155 Score
  • 11 Answer
  • Tags:   r ggplot2 r-faq

8 Answered Questions

[SOLVED] Mean per group in a data.frame

  • 2014-02-24 08:56:59
  • Ianthe
  • 235500 View
  • 112 Score
  • 8 Answer
  • Tags:   r aggregate

2 Answered Questions

[SOLVED] Reshape three column data frame to matrix ("long" to "wide" format)

10 Answered Questions

12 Answered Questions

[SOLVED] Drop factor levels in a subsetted data frame

2 Answered Questions

[SOLVED] Why is `[` better than `subset`?

5 Answered Questions

[SOLVED] Numbering rows within groups in a data frame

  • 2012-10-16 23:38:41
  • eli-k
  • 38600 View
  • 86 Score
  • 5 Answer
  • Tags:   r dataframe r-faq

10 Answered Questions

[SOLVED] Error: could not find function ... in R

13 Answered Questions

[SOLVED] Replacing NAs with latest non-NA value