> -----Original Message----- > From: r-help-boun...@r-project.org > [mailto:r-help-boun...@r-project.org] On Behalf Of miller_2555 > Sent: Wednesday, August 26, 2009 9:32 AM > To: r-help@r-project.org > Subject: Re: [R] Applying do.call to a data.frame using > function arguments > > > > miller_2555 wrote: > > > > I'm trying to convert a data.frame to a series of strings > (row-wise). > > There was a very good discussion awhile back (2002) > entitled "[R] string > > concatenate across rows of a matrix??" where Tony Plate > recommended the > > following two alternatives (x2 is an R object of type data > frame -- a > > matrix also works for solution #1): > > 1) apply(format(x2), 1, paste, collapse=" "); > > 2) do.call("paste",x2) > > > > Nevermind. Stupid question. The solution is: > do.call("paste",c(x2,sep='","'));
This works most of the time but will fail if your data.frame has a column called "sep" or "collapse" (the named arguments to paste()). Changing x2 to unname(x2) or unname(as.list(x2)) makes it more bulletproof. Bill Dunlap TIBCO Software Inc - Spotfire Division wdunlap tibco.com > > Hope this helps somebody. > -- > View this message in context: > http://www.nabble.com/Applying-do.call-to-a-data.frame-using-f > unction-arguments-tp25151441p25151445.html > Sent from the R help mailing list archive at Nabble.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.
