[R] Baffled: triggering error message with an sd result in odfWeave?

[Tubin]

Unfortunately - no luck.  Changing to the ifelse construction didn't fix the
problem, and changing the "" to a zero or a NA also didn't help.

Meanwhile, I have 4 other sd calculations on the same dataset, using the
same construction, elsewhere in the document and code.  None of them are
giving me any problems whatsoever.



I think it because you are trying to use the if-else control  
construct, when you should be using the ifelse function:

?ifelse

Try (perhaps):
traindev <- ifelse( (trainlength>0), round(sd(trainscores, na.rm=T), 
1) , "")

You do seem to be mixing types, though, so perhaps you should use NA  
instead of "".

-- 
David Winsemius

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