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New posts in data.table
Keep first row by multiple columns in an R data.table
Nov 08, 2019
r
duplicates
data.table
Use data.table set() to convert all columns from integer to numeric
Mar 31, 2022
r
data.table
Data.table - left outer join on multiple tables
Nov 07, 2022
r
data.table
Count number of rows within certain range
Sep 15, 2022
r
dataframe
performance
data.table
range
R data.table %like% with logical AND
Jun 21, 2022
r
data.table
sql-like
Subset by consecutive years in a data.frame
May 16, 2022
r
dataframe
data.table
Reshape data from long to a short format by a variable, and rename columns
Oct 14, 2022
r
aggregate
data.table
plyr
reshape
data.table join and j-expression unexpected behavior
Jul 06, 2022
r
data.table
R plyr, data.table, apply certain columns of data.frame
Nov 06, 2022
r
data.table
plyr
apply
Splitting text column into ragged multiple new columns in a data table in R
Aug 19, 2022
r
data.table
multiple-columns
strsplit
ragged
Filter data table by dynamic column name
Aug 26, 2018
r
dataframe
data.table
Join on multiple keys and conditional update [duplicate]
Aug 17, 2022
r
join
data.table
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