Thanks Patrick for you input. That is what I wanted. I must have read the R-Inferno long time back.........................
-----Original Message----- From: Patrick Burns [mailto:pbu...@pburns.seanet.com] Sent: 23 December 2010 15:01 To: r-help@r-project.org; bogaso.christofer Subject: Re: [R] R-way to doing this? If I understand your question properly, then you are looking for 'try' or 'tryCatch'. There is an example of using these on page 89 of 'The R Inferno'. On 23/12/2010 04:13, Bogaso Christofer wrote: > Dear friends, hope I could be able to explain my problem through > following example. Please consider this: > > > >> set.seed(1) > >> input<- rnorm(10) > >> input > > [1] -0.6264538 0.1836433 -0.8356286 1.5952808 0.3295078 -0.8204684 > 0.4874291 0.7383247 0.5757814 -0.3053884 > >> tag<- vector(length=10) > > > > for(i in 1:10) > > # if there is any ****error**** in evaluating "log(input[i])" > (or evaluating some function) then tag[i] = 1, otherwise tag[i] = 0 > > > > Therefore my "tag" vector should like: tag[1]=1, tag[2]=0, tag[3]=1, > tag[4]=0, tag[5]=0....... > > > > Actually R returns logarithm of a negative number as NaN, however in > this example please consider R returns error when it encounters > logarithm of a negative number. > > > > Is there any way to do above task? > > > > Thanks and regards, > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org 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. > -- Patrick Burns pbu...@pburns.seanet.com twitter: @portfolioprobe http://www.portfolioprobe.com/blog http://www.burns-stat.com (home of 'Some hints for the R beginner' and 'The R Inferno') ______________________________________________ R-help@r-project.org 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.
