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New posts in data.table
How to reference the last column in pivot_longer() without naming it or providing the index number?
Oct 25, 2025
r
dataframe
data.table
tidyr
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R function for converting data.table to named list of named vectors
Oct 25, 2025
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Emulate the window function of SQL in R
Oct 24, 2025
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R: Sum with a Mutiple criteria for each Row. Processing time is huge
Oct 24, 2025
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Counting unique list items
Oct 24, 2025
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How to check for duplicates while ignoring NAs (NA to value considered match)
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R expand.grid for repeated combinations of a vector in groups?
Oct 24, 2025
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combinations
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Is R data.table documented to pass by reference as argument?
Oct 23, 2025
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data.table
Length of polygon in R
Oct 21, 2025
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data.table
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Alternative to cut function in R for data.tables - integer variables to factors
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data.table
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data.table - summarizing data - difference between `by` and `keyby`?
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data.table
data.table: subset by index
Oct 23, 2025
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data.table
In R, how to order a column by specific value in data.table?
Oct 22, 2025
r
data.table
What is causing this difference in performance in indexing between data.table and collapse
Oct 22, 2025
r
data.table
R: Creating a unique ID in a data.table with a condition
Oct 21, 2025
r
data.table
data.table join (multiple) selected columns with new names
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r
join
data.table
Apply which.min to data.table under a condition
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data.table
R data.table split a row into multiple rows based on string values [duplicate]
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data.table
Unexpected behaviour of "formula" with "data.table" in R
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r
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