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. > > > > > > -- > Jim Holtman > Cincinnati, OH > +1 513 646 9390 > > What is the problem that you are trying to solve? ______________________________________________ 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.