Re: [R] using as.numeric() without generating warning message

Thanks for the tip! Andrew On Fri, Apr 9, 2010 at 8:04 PM, Gabor Grothendieck wrote: > Try this: > > suppressWarnings(as.numeric("A")) > > On Fri, Apr 9, 2010 at 7:22 PM, Andrew Yee wrote: > > I'm interested in testing whether or not a character string is numeric or > > not as follows: > > > >

Re: [R] using as.numeric() without generating warning message

Scratch my previous suggestion. Utter nonsense. Sigh... It's been a tough week. -- Bert Bert Gunter Genentech Nonclinical Biostatistics -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Andrew Yee Sent: Friday, April 09, 2010

Re: [R] using as.numeric() without generating warning message

Try this: suppressWarnings(as.numeric("A")) On Fri, Apr 9, 2010 at 7:22 PM, Andrew Yee wrote: > I'm interested in testing whether or not a character string is numeric or > not as follows: > > is.na(as.numeric('3')) # returns F > is.na(as.numeric('A')) # I'd like this to return T without issuing

Re: [R] using as.numeric() without generating warning message

I suspect the following is way slower and clunkier, but it does give you another way: ?tryCatch ## as in > tryCatch(1+x,error=function(e) return("darnit")) [1] "darnit" Cheers, Bert Bert Gunter Genentech Nonclinical Biostatistics -Original Message- From: r-help-boun...@r-project.o