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New posts in data.table

How can we do some calculations using last row within a group in data.table in R?

r data.table

data.table text filtering R

r text data.table

R data.table selecting the previous row within group blocks

r data.table

summarizing data.table - creating multiple columns subset by date in R

r data.table

R Add previous month value as a column

r data.table

Update two columns that are interdependent row-wise using data.table

r dataframe data.table gtfs

What is the most efficient way to change the case of column names in a data.table?

r data.table bigdata

Group-specific variable tracking the last observation when a condition was met

r data.table

How to add seasonal dummy variables?

r data.table dummy-variable

R - Find first non zero elements per groups in data.table

r data.table

R dplyr to data table - Group and Filter

r data.table dplyr

Merge a data.table and a list

r list data.table

Multiple pairwise differences based on column name patterns

r data.table array-difference

Efficient way of adding row with difference from specific group in data table

r data.table

Simple moving average on an unbalanced panel in R

r data.table plyr panel-data split-apply-combine

R - indices of matching values of two data.tables

r data.table apply

Select rows until last non-missing value by group using data.table

r dataframe data.table subset
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