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Consider
DT = data.table( ID1 = rep(10:1, 10:1), ID2 = rep(1:10, 1:10) ) setindex(DT, ID1, verbose = TRUE) # forder took 0 sec setkey(DT, ID1, verbose = TRUE) # forder took 0 sec # reorder took 0 sec
I believe the second forder is superfluous -- only the physical reordering is necessary in the setkey.
forder
setkey
The text was updated successfully, but these errors were encountered:
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Consider
I believe the second
forder
is superfluous -- only the physical reordering is necessary in thesetkey
.The text was updated successfully, but these errors were encountered: