View source: R/dimsum__sum_datatable_columns.R
dimsum__sum_datatable_columns | R Documentation |
Replace a subset of columns with a single column containing the row sums.
dimsum__sum_datatable_columns(dt, column_patterns, suffix = "")
dt |
Input data.table (required) |
column_patterns |
character vector of column patterns to match (required) |
suffix |
a character suffix for the appended column (default: "") |
a data.table where a subset of columns is replaced with a single column containing the row sums
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