Related to the posting below, by any chance is there a "Template Engine" package for R?
http://en.wikipedia.org/wiki/Template_processor This may make this type of editing much easier? Maybe... Thanks again. --- On Wed, 4/8/09, Jason Rupert <jasonkrup...@yahoo.com> wrote: > From: Jason Rupert <jasonkrup...@yahoo.com> > Subject: Re: [R] R File I/O Capability - Writing output to specific lines of > existing file > To: "jim holtman" <jholt...@gmail.com> > Cc: R-help@r-project.org > Date: Wednesday, April 8, 2009, 11:26 PM > Darn. > > I was afraid of this. Always kind of weak when it comes to > file I/O approaches, so I guess I will have to stretch and > try to put something together. > > Yeah. The input flat text file is about 600 lines long. I > will be replacing about 200. I already have the template > for those 200 lines. I guess I will just need to read down > to line 400 and replace until line 600. > > Thanks again for all the insights regarding this. > > > > --- On Wed, 4/8/09, jim holtman <jholt...@gmail.com> > wrote: > > > From: jim holtman <jholt...@gmail.com> > > Subject: Re: [R] R File I/O Capability - Writing > output to specific lines of existing file > > To: jasonkrup...@yahoo.com > > Cc: R-help@r-project.org > > Date: Wednesday, April 8, 2009, 8:02 PM > > You can always read in the initialization file, make the > > updates to it and then write it back out. If it is a text > > file, it would be very hard to write into the middle of > > it since there is no structure to the file. You can read > > it in as a table (read.table) or just as lines > > (readLines) and the make any changes you want. You can use > > regular expressions if you want to put something in the > > middle of one of the lines you have read in. > > > > On Wed, Apr 8, 2009 at 10:13 AM, Jason Rupert > > <jasonkrup...@yahoo.com> wrote: > > > > > Currently I am using the R "write"command > > to output results to a *.txt file and then copying those > > results into an initialization file. In an attempt to > > continue to automate the process I would like to have R > > write to the location in the existing initialization file, > > instead of me copying the data over. > > By any chance are there any R commands to help? > > Primarily, I will be using Windows, and the > > initialization file is a simple flat file, i.e. not XML or > > binary. > > > > I looked at: > > (a) > http://www.stat.ucl.ac.be/ISdidactique/Rhelp/library/R.io/html/00Index.html > > (b) > > http://search.r-project.org/cgi-bin/namazu.cgi?query=File+I%2FO&max=100&result=normal&sort=score&idxname=functions&idxname=Rhelp08 > > > > But, this did not appear to provide the functionality > > to edit an existing file by adding information to the middle > > of the file. > > > > Thank you again for any help and insight. > > ______________________________________________ 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.
