Hello,
I'm not so sure this is a bug, it appears to be behaving as intended from
the documentation. I would suggest using argument 'physical' from 'setkey'
to avoid reordering the rows. Something like:
x <- data.table::data.table(V1 = 9:0)
y <- data.table::copy(x)
data.table::setkey(x, V1, ph
Dear R-project,
Apologies if I am sending this to the wrong list, and thank you for your
enormous contribution.
I discovered a subtle interaction between the data.table package and
model.matrix function that influences the output to the point that you will get
completely erroneous results:
d
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