Hi!
This paragraph seems to repeat what was before it.
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When multiple columns or multiple windows width are provided, then they |
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are run in parallel. The exception is for \code{algo="exact"}, which runs in |
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parallel already. |
before:
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When multiple columns and/or multiple window widths are provided, then computations run in parallel. The exception is for \code{algo="exact"}, which runs in parallel even for single column and single window width. By default, data.table uses only half of available CPUs, see \code{\link{setDTthreads}} for details on how to tune CPU usage. |
Best wishes,
Hu
