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Top network posts
- 159 Apply a function to every specified column in a data.table and update by reference
- 125 Select first and last row from grouped data
- 46 Create a dataframe with random numbers in each column
- 43 Why is the diag function so slow? [in R 3.2.0 or earlier]
- 31 Creating dummy variables in R data.table
- 30 R: How to split a data frame into training, validation, and test sets?
- 28 Replicating rows in data.table by column value
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