Alberto Vieira Ferreira Monteiro <albmont <at> centroin.com.br> writes:
> Why this is not valid? > > test <- NULL > if (test) "test" What are you trying to do with these statements? I think setting "test" to "False" may do what you want. Of couse, I am just guessing. Anupam. ______________________________________________ R-help@stat.math.ethz.ch 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.