5 Answered Questions

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

15 Answered Questions

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

7 Answered Questions

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

4 Answered Questions

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

2 Answered Questions

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

2 Answered Questions

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

  • 2014-12-31 12:15:38
  • Richie Cotton
  • 78654 View
  • 49 Score
  • 2 Answer
  • Tags:   regex r r-faq

8 Answered Questions

[SOLVED] How to add leading zeros?

5 Answered Questions

3 Answered Questions

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

  • 2011-10-21 19:37:45
  • Lauren Samuels
  • 26767 View
  • 85 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
  • 69836 View
  • 44 Score
  • 3 Answer
  • Tags:   r dataframe r-faq

2 Answered Questions

6 Answered Questions

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

5 Answered Questions

[SOLVED] Adding Regression Line Equation and R2 on graph

  • 2011-09-26 00:52:09
  • MYaseen208
  • 193371 View
  • 193 Score
  • 5 Answer
  • Tags:   r ggplot2 ggpmisc

8 Answered Questions

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

  • 2009-11-06 09:58:58
  • lhahne
  • 234009 View
  • 127 Score
  • 8 Answer
  • Tags:   r subset dataframe

11 Answered Questions

[SOLVED] Count number of rows within each group

  • 2012-03-21 16:50:33
  • MikeTP
  • 174543 View
  • 85 Score
  • 11 Answer
  • Tags:   r dataframe r-faq

4 Answered Questions

15 Answered Questions

[SOLVED] Generate a dummy-variable

  • 2012-08-02 23:07:38
  • Pantera
  • 233848 View
  • 61 Score
  • 15 Answer
  • Tags:   r r-faq

7 Answered Questions

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

5 Answered Questions

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

  • 2010-02-16 20:00:04
  • steffen
  • 17739 View
  • 143 Score
  • 5 Answer
  • Tags:   r apply

8 Answered Questions

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

1 Answered Questions

[SOLVED] Subset by group with data.table

3 Answered Questions

[SOLVED] Add legend to ggplot2 line plot

4 Answered Questions

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

  • 2011-05-19 04:03:23
  • Mike
  • 13429 View
  • 15 Score
  • 4 Answer
  • Tags:   r mean r-faq

1 Answered Questions

3 Answered Questions

[SOLVED] Overlap join with start and end positions

29 Answered Questions

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

  • 2010-03-30 17:55:07
  • Nick
  • 225198 View
  • 344 Score
  • 29 Answer
  • Tags:   r statistics r-faq

1 Answered Questions

2 Answered Questions

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

  • 2011-07-11 01:42:57
  • MYaseen208
  • 128718 View
  • 91 Score
  • 2 Answer
  • Tags:   r graphics ggplot2

9 Answered Questions

[SOLVED] Speed up the loop operation in R

5 Answered Questions

[SOLVED] Change the order of a discrete x scale

  • 2010-07-15 08:11:16
  • lokheart
  • 184828 View
  • 115 Score
  • 5 Answer
  • Tags:   r ggplot2 r-faq