Thanks Thierry, they do both leave me with what I expected. On Mon, Feb 25, 2008 at 2:28 PM, ONKELINX, Thierry <[EMAIL PROTECTED]> wrote: > The negation of Height.1 == 0 & Height.2 == 0 was incorrect. Use > > subset(raw.all.clean, !(Height.1 == 0 & Height.2 == 0))
I can see clearly how this expression works (negating the whole test), but... > or > > subset(raw.all.clean, Height.1 != 0 | Height.2 != 0) ...not how this works, since the above to me is saying Height.1 is NOT zero OR Height.2 is NOT zero, which to my mind would pick out samples where either one or the other is not equal to zero (and of course those instances where both are equal to zero)? It seems to me that & (AND) and | (OR) are used the wrong way round in this case, since the intersection of the two tests for inequality is what is required? Neil -- Email - [EMAIL PROTECTED] / [EMAIL PROTECTED] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
