Hi, lapply(df, function (x) x[!is.na(x)]) thats is really great!
Thank you! -------- Original-Nachricht -------- > Datum: Wed, 08 Feb 2012 12:01:17 +0100 > Von: Dimitris Rizopoulos <d.rizopou...@erasmusmc.nl> > An: Johannes Radinger <jradin...@gmx.at> > CC: R-help@r-project.org > Betreff: Re: [R] remove NAs from list collectively > Two possibilities are: > > lapply(df, function (x) x[!is.na(x)]) > > and > > lapply(df, na.exclude) > > > I hope it helps. > > Best, > Dimitris > > > On 2/8/2012 11:54 AM, Johannes Radinger wrote: > > Hi, > > > > I am importing dataframe from an Excel file (xlsx package). > > The columns contain acutally measurements for single species and > > the column-length is of variable. As it is imported as a dataframe the > difference to the "longest" column is filled with NA. > > To explain it with an example, my dataframe looks like: > > > > A<- seq(1:10) > > B<- c(seq(1:5),rep(NA,5)) > > C<- c(seq(1:7),rep(NA,3)) > > > > df<- data.frame(A,B,C) > > > > > > Now I'd like to transform that to a list of vectors of different length. > Therefore I need to remove the NAs collectively from the single > columns...I tried for transforming: > > > > as.list(df) > > > > ...but I don't know how can I remove the NAs now? as.list doesn't take > na.rm=TRUE argument. Is there any ready function to perform such tasks? > > Or is there a better way then to assign the data to a list of vectors > with variable length? > > > > /johannes > > -- > > > > ______________________________________________ > > 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. > > > > -- > Dimitris Rizopoulos > Assistant Professor > Department of Biostatistics > Erasmus University Medical Center > > Address: PO Box 2040, 3000 CA Rotterdam, the Netherlands > Tel: +31/(0)10/7043478 > Fax: +31/(0)10/7043014 > Web: http://www.erasmusmc.nl/biostatistiek/ -- ______________________________________________ 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.