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Questions tagged r

1149 questions · page 2 of 23

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8
votes
1
answers

ggplot2: plotting bars when using stat_summary()

r plot ggplot2 histogram
asked 2013-06-12T14:27:57.437
8
votes
3
answers

How to convert a list into a matrix in R

r vector matrix
asked 2013-06-12T12:40:17.407
36
votes
2
answers

How to sort a character vector according to a specific order?

r
asked 2013-06-10T19:09:10.123
40
votes
5
answers

Error calling serialize R function

r parallel-processing snow
asked 2013-06-10T00:46:05.500
10
votes
2
answers

generate random integers between two values with a given probability using R

r random
asked 2013-06-08T17:00:36.730
11
votes
1
answers

Using plotmath in ggplot2 with percent sign (%)

r ggplot2 bar-chart plotmath
asked 2013-06-08T00:07:31.883
8
votes
4
answers

How to plot density curves for each column in R?

r ggplot2 dataframe
asked 2013-06-04T03:06:07.257
123
votes
5
answers

Find duplicate values in R

r
asked 2013-06-03T20:37:15.560
8
votes
3
answers

Why is vectorization faster

r vectorization
asked 2013-06-03T17:58:47.333
10
votes
1
answers

Using igraph, how to force curvature when arrows point in opposite directions

r plot igraph
asked 2013-06-01T17:53:22.393
9
votes
1
answers

R and Shiny: Pass inputs from sliders to reactive function to compute output

r function output shiny
asked 2013-05-31T01:15:44.863
8
votes
1
answers

filled.contour in R 3.0.x throws error

r plot contour
asked 2013-05-29T11:20:41.690
16
votes
3
answers

Install R Studio Server on Windows

r windows rstudio rstudio-server
asked 2013-05-28T12:27:57.683
8
votes
2
answers

The arcane formals(function(x){})$x

r metaprogramming
asked 2013-05-24T17:12:49.200
8
votes
3
answers

counting occurrences in column and create variable in R

r count
asked 2013-05-24T13:31:06.347
9
votes
4
answers

Saving and loading history automatically

r history profile
asked 2013-05-24T12:25:37.783
11
votes
2
answers

R - socketConnection

r
asked 2013-05-24T01:40:15.540
9
votes
3
answers

Reduce PDF file size of plots by filtering hidden objects

r pdf vector plot ggplot2
asked 2013-05-21T08:31:28.300
8
votes
1
answers

Fastest way to get version controlled code back into RStudio

r git version-control rstudio
asked 2013-05-16T12:19:42.677
79
votes
4
answers

Change variable name in for loop using R

r
asked 2013-05-15T13:27:07.760
8
votes
4
answers

Aggregate data frame by date and apply different functions to corresponding columns?

r sum aggregate average max
asked 2013-05-13T16:54:09.080
20
votes
2
answers

Keeping zero count combinations when aggregating with data.table

r data.table
asked 2013-05-13T10:05:10.877
24
votes
2
answers

How to suppress stargazer() information in output file

r latex stargazer
asked 2013-05-09T15:17:37.990
10
votes
2
answers

Is S4 method dispatch slow?

r dispatch r-s4
asked 2013-05-05T15:36:58.757
70
votes
10
answers

Create an ID (row number) column

r dataframe r-faq
asked 2013-05-05T13:19:19.190
34
votes
7
answers

Compute mean and standard deviation by group for multiple variables in a data.frame

r aggregate reshape reshape2
asked 2013-05-03T20:57:39.313
8
votes
7
answers

R: Converting cartesian coordinates to polar coordinates, and then calculating distance from origin

r coordinates simulation polar-coordinates cartesian-coordinates
asked 2013-05-03T03:36:44.917
22
votes
1
answers

data.table: using setkey with a column name variable

r data.table
asked 2013-05-02T20:17:22.237
25
votes
3
answers

Filter out rows from one data.frame that are present in another data.frame

r
asked 2013-05-01T23:19:52.647
22
votes
1
answers

ggplot2 draw dashed lines of same colour as solid lines belonging to different groups

r ggplot2
asked 2013-05-01T14:35:34.837
17
votes
5
answers

How to concatenate/compose functions in R?

r functional-programming
asked 2013-05-01T11:27:41.020
9
votes
1
answers

Estimating many interaction terms in glmnet

r formula glmnet
asked 2013-04-30T12:27:00.620
14
votes
3
answers

How to speed up GLM estimation?

performance r bigdata
asked 2013-04-29T17:31:39.237
8
votes
2
answers

Export describe.by (package psych) as csv file in R

r psych describe.by
asked 2013-04-29T13:18:59.000
16
votes
4
answers

R table by matrix row

r matrix
asked 2013-04-28T04:15:01.540
62
votes
7
answers

How can I make consistent-width plots in ggplot (with legends)?

r ggplot2
asked 2013-04-27T18:36:48.827
8
votes
1
answers

How to “flatten” or “collapse” a 2D data frame into a 1D data frame in R?

r 2d dataframe data.table
asked 2013-04-25T17:07:25.540
28
votes
2
answers

How to select columns programmatically in a data.table?

r dataframe data.table
asked 2013-04-25T11:32:13.163
13
votes
5
answers

How can I create a vector containing the days of the week?

r
asked 2013-04-24T13:40:36.317
16
votes
2
answers

Specifying column with its index rather than name

r ggplot2 plot
asked 2013-04-24T08:28:53.290
60
votes
4
answers

Cut() error - 'breaks' are not unique

r
asked 2013-04-24T06:33:33.773
15
votes
2
answers

R draw (abline + lm) line-of-best-fit through arbitrary point

r plot line point least-squares
asked 2013-04-22T06:18:57.880
51
votes
4
answers

rbind multiple data sets

r
asked 2013-04-22T02:49:12.690
21
votes
1
answers

Predicting LDA topics for new data

r lda topic-modeling
asked 2013-04-20T00:01:58.400
24
votes
4
answers

Graph flow chart of transition from states

r plot flowchart
asked 2013-04-19T19:29:47.003
25
votes
6
answers

Is there any way to break out of a foreach loop?

r foreach parallel-processing break
asked 2013-04-18T09:59:07.817
12
votes
2
answers

Text-mining with the tm-package - word stemming

r text-mining tm
asked 2013-04-17T20:15:16.773
9
votes
1
answers

merging tables with different column names

r merge data.table
asked 2013-04-16T21:15:53.890
8
votes
2
answers

data.table bug, causing a segfault in R

r data.table
asked 2013-04-16T20:41:42.350
22
votes
4
answers

Merge data frames and overwrite values

r merge
asked 2013-04-16T16:34:39.710
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