[datatable-help] Infinite numeric key doesn't collapse

[Arunkumar Srinivasan]

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: caneff at gmail.com caneff at gmail.com
Reply: caneff at gmail.com caneff at gmail.com
Date: February 12, 2014 at 5:02:14 PM
To: datatable-help at lists.r-forge.r-project.org datatable-help at lists.r-forge.r-project.org
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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