Dear Steve, Another option would be using list() to storage your files into R:
# Year/Month year <- 1986:1995 month <- sprintf("%02d", 1:12) # Names Files <- paste(year,month,'.asc',sep="") # Data ListFiles <- sapply(Files, read.table, header=TRUE,sep="") # To access the fist file ListFiles[[1]] #for the first HTH, Jorge On Thu, Mar 26, 2009 at 2:40 PM, Steve Murray <smurray...@hotmail.com>wrote: > > Dear all, > > I'm trying to read in a whole directory of files which have two variable > parts to the file name: year and month. E.g. comp198604.asc represents April > of 1986 - 'comp' is fixed in each case. Years range between 1986 to 1995 and > months are between 1 and 12. > > Just to be clear, there are 12 files associated with each year: e.g. > comp198601, comp198602, ... comp198612 through to comp199501, comp199502 > ... comp199512. > > I am trying to automate the reading in of these files, but am struggling to > find an adequate way of achieving this. The closest I've got is by doing: > > > > year <- 1986:1995 > month <- sprintf("%02d", 1:12) # formats numbers to 2 digits (for > maintaining leading zeros in file names) > > filelist <- paste("C:\\Documents and > Settings\\Data\\comp",year,month,".asc", sep="") > > filelist > > [1] "C:\\Documents and Settings\\Data\\comp198601.asc" > [2] "C:\\Documents and Settings\\Data\\comp198702.asc" > [3] "C:\\Documents and Settings\\Data\\comp198803.asc" > [4] "C:\\Documents and Settings\\Data\\comp198904.asc" > [5] "C:\\Documents and Settings\\Data\\comp199005.asc" > [6] "C:\\Documents and Settings\\Data\\comp199106.asc" > [7] "C:\\Documents and Settings\\Data\\comp199207.asc" > [8] "C:\\Documents and Settings\\Data\\comp199308.asc" > [9] "C:\\Documents and Settings\\Data\\comp199409.asc" > [10] "C:\\Documents and Settings\\Data\\comp199510.asc" > [11] "C:\\Documents and Settings\\Data\\comp198611.asc" > [12] "C:\\Documents and Settings\\Data\\comp198712.asc" > > > I need 1986 to remain fixed whilst it cycles through 01 to 12, before it > moves onto 1987 and cycles again. There should be 120 outputs in total (10 > years each with 12 months), but at present it's only reaching 12 outputs. > > I'd be grateful to learn what I'm doing wrong here so that I can solve > this. > > Many thanks as ever, > > Steve > > > _________________________________________________________________ > 25GB of FREE Online Storage Find out more > > ______________________________________________ > 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. > [[alternative HTML version deleted]]
______________________________________________ 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.