Well your question is quite general the solution would involve several steps. Probably the easiest solution would be to read the data in as a dataframe (using read.table()) and using the '=' as the separator of the columns. Then change the desired values in the dataframe and save it back as a *.csv file, again using sep='='. Another option would be to read the data as a text string and use regexpressions to replace certain strings.
Hope that gets you started Jannis --- Joel <joda2...@student.uu.se> schrieb am Do, 5.5.2011: > Von: Joel <joda2...@student.uu.se> > Betreff: [R] Alter a line in a file. > An: r-help@r-project.org > Datum: Donnerstag, 5. Mai, 2011 12:16 Uhr > Hi all R users > > Ive got a file that contains diffrent settings in the manor > of: > > setting1="value1" > setting2="value2" > setting3="value3" > setting4="value4" > . > . > . > > What I want to do is open the file and change the value of > a specific > setting > like wanna change setting4="value4" -> setting4="value5" > and then save the > file again. > > setting1="value1" > setting2="value2" > setting3="value3" > setting4="value5" > . > . > . > > > > > -- > View this message in context: > http://r.789695.n4.nabble.com/Alter-a-line-in-a-file-tp3498187p3498187.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.