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New posts in data.table
r data.table group by with no aggregate
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How to cast multiple columns and values of a data.table?
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collapse and paste text by multiple grouping sequential variables
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How to run a function inside data.table?
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Performing Operations on a Subset Using Data Table
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Idiom for dropping a single column in a data.table
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Fast EXISTS in data.table
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Why is data.table casting column classes when I assign all columns by reference
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Efficiently merging two data frames on a non-trivial criteria
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