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New posts in data.table
multiply two data.tables, keep all possibilities
Apr 11, 2022
r
data.table
Shift with dynamic n (number of position lead / lag by)
Sep 13, 2022
r
data.table
Modifying a value in a data.table in R
Sep 16, 2022
r
data.table
data.table and error handling using try statement
Nov 29, 2019
r
data.table
How to change few column names in a data table
Feb 21, 2019
r
data.table
Count numbers that are lower by constant from current number
Feb 12, 2022
r
count
data.table
rollover
rollapply
Add a countdown column to data.table containing rows until a special row encountered
Aug 09, 2022
r
data.table
get rows of unique values by group
Apr 05, 2022
r
data.table
Data driven plot names in data.table
Nov 03, 2022
r
plot
ggplot2
data.table
"Not Join" in R
Apr 29, 2022
r
merge
inner-join
data.table
outer-join
Count number of unique rows based on two columns, by group
Sep 25, 2022
r
count
data.table
Aggregating in R over 80K unique ID's
Feb 07, 2022
r
data.table
R grouping by condition in data.table
Oct 26, 2022
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grouping
data.table
data.table or dplyr - data manipulation
Feb 12, 2021
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data.table
plyr
data-manipulation
dplyr
filter rows by a function over values of each row, data.table
Apr 15, 2018
r
data.table
R data table: update join
Nov 13, 2022
r
data.table
cbind with partially nested list
Jun 15, 2022
r
list
data.table
nested-lists
return ID's of unique combinations
Jun 05, 2022
r
dplyr
data.table
Fastest way to drop rows with missing values?
May 17, 2022
r
data.table
How to aggregate a data.frame on both row and column names based on a hierarchical dictionary name structure?
Sep 07, 2022
r
data.table
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