Caneff,
I'm guessing you're using 1.8.10. This has been fixed a while ago in the
current devel version 1.8.11. Or you can wait until the next release (which
should be very soon now).
Arun
From: [email protected] [email protected]
Reply: [email protected] [email protected]
Date: February 12, 2014 at 5:02:14 PM
To: [email protected]
[email protected]
Subject: [datatable-help] Infinite numeric key doesn't collapse
I have a numeric key in a data.table that sometimes has infinite values. I
discovered today that Inf does not collapse when used in a by. Is this
expected? It surprised me:
DT <- data.table(x=rep(c(1,Inf), each=10), y=1:20)
DT[, sum(y), by=x] # The x==1 cases collapse, but the Inf cases don't
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