Hi I have the smililar question. I have a list: my_list <- list(name="Fred", wife="Mary", no.children=3, child.ages=c(4,7,9))
> my_list $name [1] "Fred" $wife [1] "Mary" $no.children [1] 3 $child.ages [1] 4 7 9 Now I want to search "Fred" and get attribute of that value which is 'name'. how do I get it. > match(my_list,"Fred") [1] 1 NA NA NA my thinking stops right here... list operations in R is too tough to digest and there is not good documentations. Could any one please help. thanks Srini --- Benilton Carvalho <[EMAIL PROTECTED]> wrote: > gene.pair.tf.lst[sapply(gene.pair.tf.lst, "[[", > "sig.cor")] > > b > > > On Mar 12, 2008, at 5:24 PM, Mark W Kimpel wrote: > > > I have a very long list that I'd like to subset > based on a logical > > value > > within each element. Example below. I'd like to > get just those list > > elements for further study whose $sig.cor slot is > TRUE. In this > > example, > > I'd only want element [[2]]. > > > > Should be simple, I know. How can I do this? > Thanks, Mark > > > >> gene.pair.tf.lst > > [[1]] > > [[1]]$gene.pair > > [1] "Lgals1:Pxmp2" > > > > [[1]]$sig.cor > > [1] FALSE > > > > > > [[2]] > > [[2]]$gene.pair > > [1] "Lgals1:Pxmp2" > > > > [[2]]$sig.cor > > [1] TRUE > > > > > > [[3]] > > [[3]]$gene.pair > > [1] "Lgals1:Pxmp2" > > > > [[3]]$sig.cor > > [1] FALSE > > -- > > > > Mark W. Kimpel MD ** Neuroinformatics ** Dept. of > Psychiatry > > Indiana University School of Medicine > > > > 15032 Hunter Court, Westfield, IN 46074 > > > > (317) 490-5129 Work, & Mobile & VoiceMail > > (317) 204-4202 Home (no voice mail please) > > > > mwkimpel<at>gmail<dot>com > > > > ______________________________________________ > > 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. > > > ______________________________________________ > 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. > ______________________________________________ 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.
