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.SDcols should be able to understand colA:colB #748
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And so could DT[, .N, by=b:d] would be easier when |
maybe something like this
|
Nice that you've taken up on this. I just wrote it down so that I don't forget. 733cef8 isn't necessary IMHO. There's already several cases we test for |
@rick, feel free to include/roll back in case you have other use cases I'm not aware of.
So far,
.SDcols
can do:What'd be also advantageous is to do:
to allow selection of adjacent columns by names using
:
operator.The text was updated successfully, but these errors were encountered: