5 Answered Questions

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

4 Answered Questions

[SOLVED] Faster ways to calculate frequencies and cast from long to wide

7 Answered Questions

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

16 Answered Questions

[SOLVED] Remove rows with all or some NAs (missing values) in data.frame

2 Answered Questions

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

8 Answered Questions

[SOLVED] How to add leading zeros?

2 Answered Questions

[SOLVED] How do I deal with special characters like \^$.?*|+()[{ in my regex?

  • 2014-12-31 12:15:38
  • Richie Cotton
  • 83378 View
  • 53 Score
  • 2 Answer
  • Tags:   regex r r-faq

6 Answered Questions

3 Answered Questions

[SOLVED] Finding ALL duplicate rows, including "elements with smaller subscripts"

  • 2011-10-21 19:37:45
  • Lauren Samuels
  • 28079 View
  • 88 Score
  • 3 Answer
  • Tags:   r duplicates r-faq

3 Answered Questions

[SOLVED] Calculate the mean by group

  • 2012-07-19 14:08:23
  • Jojo Ono
  • 72221 View
  • 47 Score
  • 3 Answer
  • Tags:   r dataframe r-faq

12 Answered Questions

[SOLVED] Count number of rows within each group

  • 2012-03-21 16:50:33
  • MikeTP
  • 186030 View
  • 88 Score
  • 12 Answer
  • Tags:   r dataframe r-faq

6 Answered Questions

[SOLVED] Plotting two variables as lines using ggplot2 on the same graph

2 Answered Questions

8 Answered Questions

[SOLVED] Filter data.frame rows by a logical condition

  • 2009-11-06 09:58:58
  • lhahne
  • 244453 View
  • 130 Score
  • 8 Answer
  • Tags:   r subset dataframe

15 Answered Questions

[SOLVED] Generate a dummy-variable

  • 2012-08-02 23:07:38
  • Pantera
  • 245423 View
  • 62 Score
  • 15 Answer
  • Tags:   r r-faq

8 Answered Questions

[SOLVED] R memory management / cannot allocate vector of size n Mb

4 Answered Questions

6 Answered Questions

[SOLVED] Adding Regression Line Equation and R2 on graph

  • 2011-09-26 00:52:09
  • MYaseen208
  • 201827 View
  • 197 Score
  • 6 Answer
  • Tags:   r ggplot2 ggpmisc

3 Answered Questions

[SOLVED] Add legend to ggplot2 line plot

1 Answered Questions

5 Answered Questions

[SOLVED] Is R's apply family more than syntactic sugar?

  • 2010-02-16 20:00:04
  • steffen
  • 17999 View
  • 144 Score
  • 5 Answer
  • Tags:   r apply

1 Answered Questions

[SOLVED] Subset by group with data.table

7 Answered Questions

[SOLVED] What are the differences between "=" and "<-" in R?

1 Answered Questions

5 Answered Questions

[SOLVED] Change the order of a discrete x scale

  • 2010-07-15 08:11:16
  • lokheart
  • 196401 View
  • 118 Score
  • 5 Answer
  • Tags:   r ggplot2 r-faq

4 Answered Questions

[SOLVED] Calculate group mean (or other summary stats) and assign to original data

  • 2011-05-19 04:03:23
  • Mike
  • 14067 View
  • 17 Score
  • 4 Answer
  • Tags:   r mean r-faq

30 Answered Questions

[SOLVED] Is there a built-in function for finding the mode?

  • 2010-03-30 17:55:07
  • Nick
  • 231913 View
  • 349 Score
  • 30 Answer
  • Tags:   r statistics r-faq

3 Answered Questions

[SOLVED] Overlap join with start and end positions

9 Answered Questions

[SOLVED] Convert a list of data frames into one data frame

  • 2010-05-17 17:38:24
  • JD Long
  • 152848 View
  • 273 Score
  • 9 Answer
  • Tags:   list r dataframe

2 Answered Questions

[SOLVED] Showing data values on stacked bar chart in ggplot2

  • 2011-07-11 01:42:57
  • MYaseen208
  • 134755 View
  • 92 Score
  • 2 Answer
  • Tags:   r graphics ggplot2