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New posts in data.table

update one column twice in a data.table efficient in R

r performance data.table dplyr readability

Count length of sequential consequtive values per group in R

r count data.table grouping

SQL querying dataframes inside list

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grouping on string fields in R

r grouping data.table plyr

Create a table for N, Min/Max, SD, Mean, and Median in R

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fill rows downward for a column with NAs (with R base or data.table)

r data.table census

Metaprogramming with ggplot2

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R : Getting the sum of columns in a data.frame group by a certain column

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Quick Read and Merge with Data.Table's Fread and Rbindlist

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Selecting frequent values from multiple columns from R table

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Lookup in R using data.table

r data.table

R data.table rolling join "mult" not working as expected

r join data.table

Get number of same individuals for different groups

r sum data.table

How to ungroup list columns in data.table?

r data.table kdb tidyr

How to efficiently split a big data.table into two according to a rule that involves 2 columns?

r split data.table

data.table cutoff row after duplicate

r data.table

data.table::fread an `integer64` type, manually override colClass for only one column

r data.table

Match records immediately before and after time range

r dplyr data.table lubridate

How to sort a data.table based on a set of inequality constraints?

r sorting data.table

data.table equivalent of tidyr::complete with group_by with on and by syntax

r group-by data.table tidyr
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