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New posts in data.table

How do I group by a variable and list by a random order in data.table?

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R: select range of columns in data.table

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How do I update a single row in each group?

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Use of .N and .SD in one call

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Aggregate only successive rows in data.table

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Nested groupings with data.table

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Aggregating duplicate rows by taking sum

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data.table aggregation to list column

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dcast renaming all variables to start with a number

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ggvis use of " := " in combination with data.table

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Subset and join a data frame by matching on nested list in R

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Utilizing several reference values in a lookup table

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Working with temporary columns (created on-the-fly) more efficiently in a dataframe

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How to sum and count on a data.table grouped by values in R

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Why is it faster to evaluate in `j` than with `$` in a `data.table`?

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Issue with filtering data.table for dates - works with fixed date but not with variable

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How to delete columns from a data.table based on values in column

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R data.table with variable number of columns

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Filter data.table by quantity of group

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Pivot rows into columns with values of counts for each measurement R

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