Dimitri Liakhovitski <dimitri.liakhovit...@gmail.com> writes: > Thanks again - and one follow-up question. > When I do do.call(rbind, lapply(dir(patt = "\\.csv$"), read.csv)) > What is the right way to speicify (probably under "patt") that I only > need to grab those .csv files that contain a certain string, e.g., > "result"?
I assume you mean whose names contain a certain string, rather than the string being in the file contents. The "pattern" argument to dir() is a "regular expression". They are a worthwhile thing to know a bit about, so, you should have a look at some introductory material on regular expressions, but this might also help a bit: > dir() [1] "1-result.csv" "result-2.csv" "resultcsv" "result.csv" > dir(patt="result\\.csv$") [1] "1-result.csv" "result.csv" > dir(patt="result.*\\.csv$") [1] "1-result.csv" "result-2.csv" "result.csv" Dan > I tried a couple of things, like patt= "\\.csv$" & pat = "result" - > but it does not seem to work > Thanks a lot! > Dimitri > > > > On Wed, May 12, 2010 at 6:16 PM, Dimitri Liakhovitski > <dimitri.liakhovit...@gmail.com> wrote: >> Thanks a lot, Henrique, will try! >> Dimitri >> >> On Wed, May 12, 2010 at 3:41 PM, Henrique Dallazuanna <www...@gmail.com> >> wrote: >>> Try this: >>> >>> do.call(rbind, lapply(dir(patt = "\\.csv$"), read.csv)) >>> >>> On Wed, May 12, 2010 at 4:32 PM, Dimitri Liakhovitski >>> <dimitri.liakhovit...@gmail.com> wrote: >>>> >>>> Hello, >>>> >>>> I am wondering if it's possible to read in all files of a certain type >>>> - without specifying their names. >>>> For example, I have 10 .csv files in my working directory. >>>> I would like to read them in and bind them all together. I was >>>> thinking of writing a loop, read in all files, and then bind them. >>>> Is it possible? >>>> >>>> Thanks a lot! >>>> >>>> -- >>>> Dimitri Liakhovitski >>>> Ninah Consulting >>>> www.ninah.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. >>> >>> >>> >>> -- >>> Henrique Dallazuanna >>> Curitiba-Paraná-Brasil >>> 25° 25' 40" S 49° 16' 22" O >>> >> >> >> >> -- >> Dimitri Liakhovitski >> Ninah Consulting >> www.ninah.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.
