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New posts in data.table

How to use data.table to efficiently calculate allele frequencies (proportions) by group across multiple columns (loci)

r data.table

Expanding window (cumulative calculation) in data.table: how to improve performance

r performance data.table

Is there a performance advantage to multiple data.table assignments in one statement?

r performance data.table variable-assignment

subseting with grep in data.table - unpredicatble

r data.table

R, data.table: How to assign values of some columns based on the names of other columns, which are stored in a character vector?

r data.table

Fitting different models to each subset of data in R

r data.table

Calculate `cumsum` by run of signal value

r data.table dplyr

Round to a multiple and filter in data.table

r data.table

R Data Table - join but filter with update

r data.table

data.table optimisation - conditional sum

r optimization data.table

How to group_by without creating a grouping variable?

r dplyr data.table

R, data.table: Sum all columns whose names are stored in a vector

r data.table evaluation expression-evaluation

Increase paste speed of two columns in data.table in R (reproducible)

r performance time data.table

By group check if previous entry exists based on other column

r data.table

Flag rows based on multiple conditions on specific columns in data.table

r data.table

ordered grouping of rows in R

r dplyr data.table

Select data.table values based on a vector of column indexes

r select data.table

find column value and name based on minimum value in other column

r data.table

Determine dynamic window width: efficient rolling count of values which satisfy a condition

r data.table rolling-computation

Split character strings in a column and insert as new rows

r data.table
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