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dplyr : Stackoverflow Help
Is there an R function for sumproduct the last 4 rows in a dataframe?
r
dplyr
rollapply
sumproduct
Updated October 20, 2019 02:26 AM
0
answers
1
views
0
votes
gather() per grouped variables in R for specific columns
r
dplyr
tidyr
Updated October 19, 2019 03:26 AM
1
answers
19
views
1
votes
Nested Match Functions in R
r
dplyr
Updated October 19, 2019 03:26 AM
0
answers
2
views
0
votes
Find predictions for linear model that is grouped_by
r
dplyr
broom
Updated October 18, 2019 21:26 PM
1
answers
31
views
1
votes
reduce grouped data frame by intersecting values in each group
r
dplyr
data.table
Updated October 18, 2019 01:26 AM
4
answers
47
views
0
votes
Splitting data of a column and placing them into two consecutive rows for the same observation
r
dataframe
dplyr
Updated October 17, 2019 16:26 PM
2
answers
23
views
0
votes
Unusual (to me) data structure: count how often two columns mutually point to one another
r
dplyr
tidyverse
Updated October 17, 2019 07:26 AM
2
answers
21
views
0
votes
Applying functions stored in a dataframe to another dataframe in R
r
dplyr
tidyverse
purrr
tidyeval
Updated October 15, 2019 21:26 PM
1
answers
37
views
0
votes
Converting SAS script in R and create a loop
r
loops
dplyr
sas
Updated October 12, 2019 01:26 AM
1
answers
36
views
0
votes
Inner join on large dataset best practices
r
parallel-processing
dplyr
bigdata
Updated October 12, 2019 01:26 AM
2
answers
21
views
0
votes
subseting dates and times in dplyr
r
select
filter
dplyr
mutate
Updated October 11, 2019 22:26 PM
1
answers
22
views
0
votes
Removing NULL values from the table
r
dplyr
tidyverse
Updated October 11, 2019 17:26 PM
2
answers
39
views
-1
votes
insert if statement after pipe %>% to return error message within custom function
r
function
if-statement
dplyr
return
Updated October 10, 2019 10:26 AM
1
answers
7
views
0
votes
R Studio - how to store the output as dataframe (dplyr)
r
dplyr
Updated October 09, 2019 21:26 PM
0
answers
3
views
0
votes
R Determine if a value ends in 0
r
dplyr
Updated October 09, 2019 12:26 PM
2
answers
12
views
1
votes
In tidyr version 1.0.0.9000, how to simplify nested columns to lists?
r
dplyr
tidyverse
nest
tidyr
Updated October 08, 2019 21:26 PM
0
answers
3
views
0
votes
Estimate the quantile of each values according to its vector with dplyr mutate_at
r
dplyr
mutate
quantile
Updated October 08, 2019 15:26 PM
0
answers
9
views
0
votes
Faster way to make data frame of summary statistics by time variable across partitions of dataset
r
dplyr
automation
subset
purrr
Updated October 06, 2019 13:26 PM
0
answers
18
views
0
votes
How to create a variable from a condition on other indexed variables in an efficient way?
r
dplyr
purrr
mutate
Updated October 05, 2019 22:26 PM
2
answers
27
views
0
votes
Repalce 1 by random values in R
r
dplyr
Updated October 05, 2019 18:26 PM
1
answers
16
views
0
votes
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