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How to select specific elements and find their index in a data.frame?

score 1174 · Answer 1 · 2015-06-05T08:41:42.137000

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How to select specific elements and find their index in a data.frame?

1.1k views Asked by Alexander At 05 June 2015 at 08:41

score 1602 · Answer 2 · 2015-06-07T21:30:54.120000

R dplyr - error in subsetting of local data frame

1.6k views Asked by user1885116 At 07 June 2015 at 21:30

score 1507 · Answer 3 · 2015-06-08T14:20:22.300000

How to use logical functions with %>% operator (dplyr)

1.5k views Asked by potockan At 08 June 2015 at 14:20

score 839 · Answer 4 · 2015-06-09T17:49:42.093000

Add new column as result of a condition between groups in dplyr

839 views Asked by Diego At 09 June 2015 at 17:49

score 2889 · Answer 5 · 2015-06-08T14:55:49.117000

merge or mutate a summary (dplyr)

2.8k views Asked by giac At 08 June 2015 at 14:55

score 27631 · Answer 6 · 2015-06-09T15:36:19.243000

Getting the median by date using dplyr's summarise() in R

27.6k views Asked by Chisanamono At 09 June 2015 at 15:36

score 3891 · Answer 7 · 2015-06-10T00:53:00.583000

Keep only groups of data with multiple observations

3.8k views Asked by b222 At 10 June 2015 at 00:53

score 794 · Answer 8 · 2015-06-09T15:10:22.680000

Something like conditional seq_along on grouped data

794 views Asked by r.bot At 09 June 2015 at 15:10

score 158 · Answer 9 · 2015-06-10T10:12:49.963000

Grouping by factor absent in dataset

158 views Asked by user3310782 At 10 June 2015 at 10:12

score 3928 · Answer 10 · 2015-06-10T05:40:58.917000

R dplyr, using mutate with na.omit causes error incompatible size (%d)

3.9k views Asked by YJZ At 10 June 2015 at 05:40

score 1236 · Answer 11 · 2015-06-10T12:26:29.257000

dplyr: optional parameter in mutate_each

1.2k views Asked by Jonas At 10 June 2015 at 12:26

score 1762 · Answer 12 · 2015-06-09T10:42:09.230000

How does one specify a primary key when using dplyr copy_to()?

1.7k views Asked by seandavi At 09 June 2015 at 10:42

score 364 · Answer 13 · 2015-06-11T17:02:02.713000

Combine group_by and distinct

364 views Asked by bjoseph At 11 June 2015 at 17:02

score 311 · Answer 14 · 2015-06-11T17:02:36.233000

Select first observed data and utilize mutate

311 views Asked by b222 At 11 June 2015 at 17:02

score 182 · Answer 15 · 2015-06-10T15:25:44.843000

Events in last 21 days for every row by Name

182 views Asked by gibbz00 At 10 June 2015 at 15:25

score 234 · Answer 16 · 2015-06-11T18:36:14.950000

Refer particular value in `dplyr::mutate()`

234 views Asked by m0nhawk At 11 June 2015 at 18:36

score 1148 · Answer 17 · 2015-06-11T18:51:17.047000

How to use dplyr SE with "invalid" names (ie containing spaces)?

1.1k views Asked by DeanAttali At 11 June 2015 at 18:51

score 884 · Answer 18 · 2015-06-11T13:34:52.873000

Best practice to get a dropped column in dplyr tbl_df

884 views Asked by Dieter Menne At 11 June 2015 at 13:34

score 628 · Answer 19 · 2015-06-11T08:20:27.360000

use column-name range in data.table like in dplyrs select

628 views Asked by grrgrrbla At 11 June 2015 at 08:20

score 6814 · Answer 20 · 2015-06-12T04:27:06.043000

dplyr rename_ produces an error when renaming columns with spaces

6.8k views Asked by daj At 12 June 2015 at 04:27

TechQA.

List Question

How to select specific elements and find their index in a data.frame?

R dplyr - error in subsetting of local data frame

How to use logical functions with %>% operator (dplyr)

Add new column as result of a condition between groups in dplyr

merge or mutate a summary (dplyr)

Getting the median by date using dplyr's summarise() in R

Keep only groups of data with multiple observations

Something like conditional seq_along on grouped data

Grouping by factor absent in dataset

R dplyr, using mutate with na.omit causes error incompatible size (%d)

dplyr: optional parameter in mutate_each

How does one specify a primary key when using dplyr copy_to()?

Combine group_by and distinct

Select first observed data and utilize mutate

Events in last 21 days for every row by Name

Refer particular value in `dplyr::mutate()`

How to use dplyr SE with "invalid" names (ie containing spaces)?

Best practice to get a dropped column in dplyr tbl_df

use column-name range in data.table like in dplyrs select

dplyr rename_ produces an error when renaming columns with spaces

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