Hi r-help-boun...@r-project.org napsal dne 05.05.2011 15:13:34:
> Joel <joda2...@student.uu.se> > Odeslal: r-help-boun...@r-project.org > > 05.05.2011 15:13 > > > jholtman wrote: > > > > a <- readLines(textConnection('setting1="value1" > > setting2="value2" > > setting3="value3" > > setting4="value4"')) > > closeAllConnections() > > # change values > > ac <- sub('setting4="value4"', 'setting4="value5"', a) > > writeLines(ac, con='myFile.txt') > > > > Problem is that I dont know the value on all the settings that I wanna > change otherwise that looks like something to continue on. > But in that case how would you like to select the setting? > > > Petr Pikal wrote: > > > > What file, what is its structure, is it some R object or separate file? > > What did you try and what went wrong? > > > > Regards > > Petr > > > > Just a normal textfile nothing fancy > Ive tried diffrent kind of ways of useing my OS witch is linux by the system > command to do it for me but Im not good enought on regexp to get it to work > properly. I read the simple text file by read.table > data V1 1 setting1="value1" 2 setting2="value2" 3 setting3="value3" 4 setting4="value4" > grep("4", data$V1) [1] 4 Regards Petr > > -- > View this message in context: http://r.789695.n4.nabble.com/Alter-a-line- > in-a-file-tp3498187p3498316.html > Sent from the R help mailing list archive at Nabble.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. ______________________________________________ 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.