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New posts in data.table
Large integers in data.table. Grouping results different in 1.9.2 compared to 1.8.10
Mar 18, 2022
r
data.table
R data.table conditional aggregation
Jun 19, 2020
r
data.table
Speed decrease in subsetting `data.table` when adding a bracket
Jul 09, 2019
r
data.table
Bypassing "ghost" line break or end of file (EOF) in data.table::fread
Jul 30, 2017
r
error-handling
dataframe
data.table
Melt and cast data table using pattern
Oct 02, 2022
r
data.table
data.table join with roll = “nearest” returns "search value" instead of original value
May 29, 2019
r
data.table
r data.table functional programming / metaprogramming / computing on the language
Mar 29, 2022
r
functional-programming
data.table
dplyr
metaprogramming
Find nearest matches for each row and sum based on a condition
Feb 24, 2022
r
data.table
sqldf
Unlisting nested lists and plotting using ggplot
Jun 17, 2022
r
dataframe
ggplot2
data.table
Multiple joins/merges with data.tables
Sep 22, 2022
r
join
merge
data.table
multiple-tables
Combination of Join with Not Join in data.table?
Feb 17, 2019
r
data.table
Subsetting data.table by not head(key(DT),m), using binary search not vector scan
Dec 19, 2017
r
data.table
Apply function on each cell in a column and add the result to a new column
Mar 03, 2018
r
data.table
Equivalent for dlply in data.table
Aug 01, 2021
r
data.table
decimal point setting in fread, data.table
Apr 09, 2022
r
data.table
R: Force data.table to compute all interactions
Jun 04, 2017
r
combinations
data.table
combinatorics
interaction
Select one row from each group in a large data.table based on a condition [duplicate]
May 30, 2017
r
data.table
R data.table Size and Memory Limits
Aug 22, 2022
r
data.table
Apply function across subset of columns in data.table with .SDcols
May 23, 2022
r
data.table
Is there a dplyr or data.table equivalent to plyr::join_all? Joining by a list of data frames?
Nov 04, 2022
r
data.table
dplyr
plyr
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