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Questions tagged r

1149 questions · page 11 of 23

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226
votes
4
answers

How to convert a table to a data frame

r dataframe
asked 2012-05-25T17:35:18.957
11
votes
2
answers

How to plot multiple lines in R

r plot
asked 2012-05-24T02:21:14.633
8
votes
2
answers

data.table efficient alternative to grouped assignment as DT[ ,x:=f(y),by=z]?

r data.table
asked 2012-05-24T00:51:47.310
14
votes
1
answers

Spacing in axis label when using expression(paste(...))

r axis-labels plotmath
asked 2012-05-23T08:39:26.523
8
votes
2
answers

Grid badly displayed using ggplot2

r map-projections ggplot2
asked 2012-05-22T17:01:08.270
12
votes
4
answers

obtain hour from DateTime vector

r date time
asked 2012-05-21T10:05:17.373
8
votes
2
answers

R, passing variables to a system command

r shell variables cran
asked 2012-05-18T11:17:38.800
35
votes
2
answers

Max Length for a Vector in R

r
asked 2012-05-17T17:50:09.620
119
votes
6
answers

Remove part of string after "."

r regex string
asked 2012-05-16T11:37:00.953
15
votes
3
answers

Why does `x[0]` return a zero-length vector?

arrays r
asked 2012-05-16T01:06:16.260
9
votes
3
answers

quadprog optimization

r optimization linear-algebra mathematical-optimization quadratic
asked 2012-05-10T01:05:04.393
14
votes
3
answers

Put a break in the Y-Axis of a histogram

r plotrix
asked 2012-05-08T19:02:40.167
19
votes
5
answers

R idiom for switch/case

r switch-statement
asked 2012-05-07T18:57:34.850
16
votes
3
answers

reshape wide to long with character suffixes instead of numeric suffixes

r reshape
asked 2012-05-06T07:41:38.680
14
votes
3
answers

Loops in R - Need to use index, anyway to avoid 'for'?

r loops for-loop
asked 2012-05-06T01:17:11.893
14
votes
1
answers

Is it possible to plot a boxplot from previously-calculated statistics easily (in R?)

r data-visualization boxplot
asked 2012-05-03T18:55:58.250
110
votes
4
answers

How to use the switch statement in R functions?

r switch-statement
asked 2012-05-01T04:19:58.027
20
votes
1
answers

Find indices of multiple maximums in a vector

r
asked 2012-04-30T04:11:13.973
13
votes
3
answers

How to invert the y-axis on a plot

r plot
asked 2012-04-28T04:26:56.953
52
votes
1
answers

Plotting lines and the group aesthetic in ggplot2

r ggplot2
asked 2012-04-27T21:00:19.863
11
votes
2
answers

Annotation above bars:

r ggplot2
asked 2012-04-26T04:30:23.467
8
votes
6
answers

Change tempdir() in session (update R_TempDir)

c r cran
asked 2012-04-25T19:29:11.983
8
votes
2
answers

Finding the column number and value the of second highest value in a row

r dataframe plyr
asked 2012-04-24T11:21:03.680
12
votes
3
answers

Getting column name which holds a max value within a row of a matrix holding a separate max value within an array

r indexing max
asked 2012-04-24T01:57:56.683
13
votes
3
answers

R: Sample a vector with replacement multiple times

r
asked 2012-04-21T23:43:46.267
8
votes
7
answers

Function for median similar to "which.max" and "which.min" / Extracting median rows from a data.frame

r dataframe subset
asked 2012-04-21T05:30:43.580
13
votes
1
answers

Taking a disproportionate sample from a dataset in R

r random sampling
asked 2012-04-20T05:54:52.060
60
votes
4
answers

Find windows user name within R

windows r
asked 2012-04-15T18:18:20.347
11
votes
2
answers

geom_rect failure: Error in eval(expr, envir, enclos) : object 'variable' not found

r ggplot2
asked 2012-04-14T14:08:56.890
13
votes
2
answers

A way to always dodge a histogram?

r ggplot2
asked 2012-04-13T23:28:44.217
71
votes
2
answers

plot legends without border and with white background

r plot legend
asked 2012-04-11T14:33:40.447
8
votes
4
answers

Converting models in Matlab/R to C++/Java

r matlab
asked 2012-04-10T13:28:46.010
37
votes
4
answers

use multiple columns as variables with sapply

r dataframe apply
asked 2012-04-09T18:56:15.590
8
votes
4
answers

How to show directlabels after geom_smooth and not after geom_line?

r ggplot2 direct-labels
asked 2012-04-08T18:19:03.720
20
votes
5
answers

Plot fitted line within certain range R

r plot lm par
asked 2012-04-05T21:42:28.920
15
votes
1
answers

Set one or more of coefficients to a specific integer

r lm
asked 2012-04-05T11:24:03.427
12
votes
1
answers

How to copy row from one data.frame in to another [R]

r copy dataframe
asked 2012-04-04T15:10:07.490
17
votes
3
answers

Split dataframe into multiple output files

r split dataframe
asked 2012-04-03T21:57:32.903
33
votes
4
answers

R syntax for selecting all but two first rows

r syntax row
asked 2012-04-03T17:52:02.263
32
votes
2
answers

How to print the structure of an R object to the console

r
asked 2012-04-03T10:27:08.670
26
votes
7
answers

Copy/move one environment to another

r
asked 2012-04-01T15:23:45.293
12
votes
3
answers

Gantt style time line plot (in base R)

r
asked 2012-03-25T17:53:53.530
12
votes
2
answers

Identify binary columns

r
asked 2012-03-22T21:39:50.467
14
votes
1
answers

geom_boxplot(): forcing an empty level to appear

r ggplot2 boxplot r-factor
asked 2012-03-22T08:43:04.487
11
votes
2
answers

consolidating data frames in R

r csv
asked 2012-03-21T15:40:09.447
29
votes
3
answers

How to import from SQLite database?

sqlite r
asked 2012-03-21T10:27:39.343
10
votes
1
answers

R stat_smooth all points

r ggplot2
asked 2012-03-19T11:57:49.477
35
votes
2
answers

List of Defined Variables in R

r
asked 2012-03-16T19:49:28.413
24
votes
1
answers

Legend title position in ggplot2

r position ggplot2 legend
asked 2012-03-16T15:20:29.897
72
votes
5
answers

Split data.frame based on levels of a factor into new data.frames

r dataframe r-faq
asked 2012-03-15T02:43:06.470
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