Full_Name: J . R. M. Hosking Version: 1.8.0 OS: Windows 2000 Submission from: (NULL) (129.34.20.23)
On R 1.8.0 (and on R 1.5.1), Windows binary:
> NA %*% 0
[,1]
[1,] 0
This is surprising. Is it a bug? Note that
> 0 %*% NA
[,1]
[1,] NA
> NA %*% 1
[,1]
[1,] NA
> NA * 0
[1] NA
as expected.
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