foo<- function(x,help=FALSE,...)
{
helpout<-c(comment,
comment,
end of comments)
if(something_is_wrong_with_inputs || help=TRUE)
{
print(helpout)
stop #or trycatch, or whatever you prefer
}
[remainder of function]
}
I know that's sloppy but I'm new to R.
Carl
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Along the lines of Gabor's method, presumably you could put a "spare"
argument in your function:
