On Apr 29, 2013, at 6:03 PM, Sparks, John James wrote: > Dear R Helpers, > > I am re-phrasing a question that I put forth earlier today due to some > particulars in the solution that I am searching for. Many thanks to those > who answered the previous post and to any who would be willing to answer > this one. > > I have a set of data frames. I need to perform some data scrubbing on > each of them. I am trying to figure out how to perform the same steps on > each data frame using some sort of loop or something along those lines. > > Because my actual data frames are quite large and the steps I am taking > moderately complicated, I would very much prefer not to put them all > together in a list because when I get an error, I can't determine which > part of the list is the source of the error. So, I would really > appreciate it if someone could post a way to perform the following sub > setting function on the three simple data frames in the example below with > some sort of loop or something along those lines, which would work > directly on the data frames in question. > > Many thanks in advance. Please let me know if there is anything I can do > to make the question more clear. > > --John Sparks > > > x=as.data.frame(matrix(c(1,2,3, > 1,2,3, > 1,2,2, > 1,2,2, > 1,1,1),ncol=3,byrow=T)) > > y=as.data.frame(matrix(c(1,2,3, > 1,2,3, > 1,2,2, > 1,2,2, > 1,1,1),ncol=3,byrow=T)) > > z=as.data.frame(matrix(c(1,2,3, > 1,2,3, > 1,2,2, > 1,2,2, > 1,1,1),ncol=3,byrow=T)) > > #Want to build some sort of loop for this. > x<-subset(x,select=-c(V1)) > y<-subset(y,select=-c(V1)) > z<-subset(z,select=-c(V1))
> for(i in letters[24:26] ) assign( i, subset(get(i), select=-c(V1)) ) > x V2 V3 1 2 3 2 2 3 3 2 2 4 2 2 5 1 1 -- David Winsemius Alameda, CA, USA ______________________________________________ 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.
