23 Answered Questions

[SOLVED] How to make a great R reproducible example

  • 2011-05-11 11:12:02
  • Andrie
  • 239503 View
  • 2481 Score
  • 23 Answer
  • Tags:   r r-faq

13 Answered Questions

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

9 Answered Questions

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

  • 2011-05-04 22:27:50
  • Steve
  • 144047 View
  • 204 Score
  • 9 Answer
  • Tags:   r reshape r-faq

4 Answered Questions

[SOLVED] Why are these numbers not equal?

5 Answered Questions

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

13 Answered Questions

[SOLVED] How to sum a variable by group?

  • 2009-11-02 09:01:28
  • user5243421
  • 386382 View
  • 271 Score
  • 13 Answer
  • Tags:   r sorting r-faq

7 Answered Questions

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

9 Answered Questions

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

4 Answered Questions

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

  • 2012-12-08 02:13:44
  • RoyalTS
  • 22506 View
  • 79 Score
  • 4 Answer
  • Tags:   r string split r-faq

7 Answered Questions

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

  • 2010-08-05 18:53:32
  • Adam SO
  • 690115 View
  • 508 Score
  • 7 Answer
  • Tags:   r casting r-faq

6 Answered Questions

18 Answered Questions

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

6 Answered Questions

16 Answered Questions

9 Answered Questions

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

  • 2013-10-07 13:58:00
  • Joshua Ulrich
  • 216849 View
  • 453 Score
  • 9 Answer
  • Tags:   r function r-faq

8 Answered Questions

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

  • 2013-08-14 02:27:57
  • Samuel Song
  • 75183 View
  • 85 Score
  • 8 Answer
  • Tags:   r dataframe r-faq

6 Answered Questions

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

2 Answered Questions

12 Answered Questions

[SOLVED] Order Bars in ggplot2 bar graph

  • 2011-03-06 04:20:48
  • Julio Diaz
  • 235094 View
  • 247 Score
  • 12 Answer
  • Tags:   r ggplot2 r-faq

8 Answered Questions

[SOLVED] Quickly reading very large tables as dataframes

15 Answered Questions

[SOLVED] Split data frame string column into multiple columns

10 Answered Questions

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

13 Answered Questions

[SOLVED] Replacing NAs with latest non-NA value

14 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
  • 200575 View
  • 178 Score
  • 14 Answer
  • Tags:   r ggplot2 r-faq

12 Answered Questions

13 Answered Questions

[SOLVED] How to import multiple .csv files at once?

  • 2012-07-11 13:10:50
  • Jojo Ono
  • 241581 View
  • 149 Score
  • 13 Answer
  • Tags:   r csv import r-faq

5 Answered Questions

[SOLVED] Numbering rows within groups in a data frame

  • 2012-10-16 23:38:41
  • eli-k
  • 55225 View
  • 109 Score
  • 5 Answer
  • Tags:   r dataframe r-faq

6 Answered Questions

[SOLVED] Transpose / reshape dataframe without "timevar" from long to wide format

13 Answered Questions

[SOLVED] Drop factor levels in a subsetted data frame

7 Answered Questions

[SOLVED] Converting year and month ("yyyy-mm" format) to a date?