Using Sweave in the tools library (R version 1.8.0: sorry i havent
upgraded), it seems i cant use if statements in R chunks that make graphs.
i have this:
<<fig=TRUE,echo=F>>=
par(mfrow=c(1,1))
if(exists("x"))
plot(x,x)
else{
plot(1,1,type="n")
text(1,1,"data not available.\n")
}
@
and I get this error:
Error: chunk 6
Error in parse(file, n, text, prompt) : parse error
any help is appreciated.
thanks and apologies if this not a problem in R 1.8.1
rafael
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