Re: [R] noncommutative addition: NA+NaN != NaN+NA

[Bernardo Rangel Tura]

At 06:17 07/09/2004, you wrote:

Hi guys.
Check this out:
 NaN +NA
[1] NaN
 NA + NaN
[1] NA
I thought "+" was commutative by definition.   What's going on?
In my version, both cases is NA:
>  NaN +NA
[1] NA
> NA + NaN
[1] NA
>
R.version
         _
platform i386-pc-mingw32
arch     i386
os       mingw32
system   i386, mingw32
status
major    1
minor    9.1
year     2004
month    06
day      21
language R

Bernardo Rangel Tura, MD, MSc
National Institute of Cardiology Laranjeiras
Rio de Janeiro Brazil  
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