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New posts in data.table
cumulative days passed since reoccurring event by group
Apr 19, 2026
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data.table
How to get when a column becomes lower than another and when it becomes higher?
Apr 20, 2026
r
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Modify data.frame column with data and condition from another data.frame [duplicate]
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Transforming long table into wide format with counts for only one column
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Converting 1M to 1000000 elegantly
Apr 18, 2026
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When and how to use as.name() vs.get() in data.table (ex. in looping over columns)?
Apr 18, 2026
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Find every combination meeting constraints
Apr 18, 2026
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Group consecutive rows in a data table in R
Apr 16, 2026
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How to get the difference in value between subsequent observations (country-years)?
Apr 16, 2026
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Bi-weekly binning with data table
Apr 15, 2026
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Convert list column to a string in place
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Transpose dataframe without t(), and using spread(), cast(), or melt()
Apr 14, 2026
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data.table merge() with NA in by column
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How to de-aggregate binomial response data from individuals with the same covariates to bernoulli and vice-versa?
Apr 15, 2026
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function
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tidyverse
subsetting ID and dates in data.table R
Apr 13, 2026
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data.table
subset
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