Hi Martin, many thanks for following-up on my question.
I did it again: ## capture all the output to a file. zz <- file("C:/Temp/all.Rout", open = "wt") sink(zz) sink(zz, type = "message") try(log("a")) ## back to the console sink(type = "message") sink() close(zz) This works. I tried several other combinations of the commands, e.g. ## capture all the output to a file. zz <- file("C:/Temp/all.Rout", open = "wt") sink(zz) sink(zz, type = "message") try(log("a")) close(zz) Does not work. As far as I have understood right now, I have to loosen the connection of the streams with sink(zz, type = "message") and sink() before I can close the file connection itself. If I did it like in the last example the connection to the file is lost and then the connection to the streams of sink() can not be recovered. This will last until the R session is closed and opened again. To me it looks like I need to learn more about the operation of R under the hood. Kind regards Georg Von: Martin Maechler <maech...@stat.math.ethz.ch> An: <g.maub...@weinwolf.de>, Kopie: Sarah Goslee <sarah.gos...@gmail.com>, <r-help@r-project.org> Datum: 12.05.2016 10:40 Betreff: [R] Antwort: Re: Re: Antwort: Re: Re: sink(): Cannot open file > Hi Sarah, > yes, I followed your suggestion. I doubt that you followed it correctly. Sarah's advise is usually really very sound -- and your code below is *not* : > If I do exactly what is in the example of the documentation: > sink("C:/Temp/sink-examp.txt") > i <- 1:10 > outer(i, i, "*") > sink() > unlink("C:/Temp/sink-examp.txt") > it does not write anything, i. e. no file is created in "C:/Temp/". The > script is executed without an error or warning message. Well, did you ever lookup what unlink() does ? I save you the time : it does *REMOVE* a file. So no wonder that you don't see any result after executing the above R code block.. Martin ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.