[R] creating files using for loop

[Gabor Grothendieck]

On 4/7/06, Brian Quinif <bquinif at gmail.com> wrote:
> I tried that, and the problem seems to be that the results of the
> 'paste'ing are enclosed in quotes...that is the paste yields
> '101.tex'.  Of course, that is what I said I wanted above, and it
> should work for that particular instance, but I also want to be able
> to create estimates.101 and estimates.201, for example.  That is, I
> want to be able to just generate the value of sub.dataset[i] and
> follow it or precede it by whatever I choose, not necessarily
> quotation marks.


Don't confuse the result of printing it with what is stored in it:

> x <- paste(101, "tex", sep = ".")
> x
[1] "101.tex"
> cat(x)
101.tex> nchar(x)
[1] 7

Note that there are 7 characters in x.




>
> Thanks,
>
> BQ
>
> 2006/4/7, Gabor Grothendieck <ggrothendieck at gmail.com>:
> > See ?paste and try:
> >
> > paste(sub.dataset[i], "tex", sep = ".")
> >
> > On 4/7/06, Brian Quinif <bquinif at gmail.com> wrote:
> > > I would like to use a for loop to run estimations on 12 different
> > > subsets of a dataset.
> > >
> > > I have the basics of my script figured out, but I am having problems
> > > getting the loop to name some files as I would like.   Here is a
> > > sketch of my code:
> > >
> > > sub.dataset <- c(101, 201)
> > > #Assume I only have two subsets which I call 101 and 201
> > >
> > > for (i in 1:length(sub.dataset)) {
> > > #Estimation commands here...unimportant for this question
> > > #Estimates <- matrix of estimation resultsI will write out to LaTeX
> > > latex(Estimates, file=sub.dataset[i].tex)
> > > }
> > >
> > > So, the latex command is what's problematic here.  How can I get my
> > > for loop to put file='101.tex' and file='201.tex' (or many similar
> > > things) where I want it to.  I could just as easily want to put
> > > something like 101$variable1 or 201$variable1.
> > >
> > > Sorry for such a basic question regarding for loops, but thanks for the help.
> > >
> > > Brian
> > >
> > > ______________________________________________
> > > R-help at stat.math.ethz.ch mailing list
> > > https://stat.ethz.ch/mailman/listinfo/r-help
> > > PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
> > >
> >
>