Deae R helpers, the problem I'm facing today is related to the manipulation of a string.
The string is coming from a a porosimeter, whose control is under a complicate set-up of two computers One (running on DOS) is controlling directly the hardware, while the other (running on win XP) which process the data is connected to the first one via serial. I get the data from this last computer. The string I'm trying to process comes from a command like this > myString <- readLines(path.to.file, 150)[78] and looks like this > [1] "(MPa)\t(mm3)\t(nM)\t(mm3/g)\t(mm3/g)\t(%)\t(m\xb2/g)\t" where "\xb2" is the alt+0178 ASCII character My problem is to find out the regexp to substitute the ASCII 0178 with a simple "2" No problem with, say gsub('\t',';', myString) [1] "(MPa);(mm3);(nM);(mm3/g);(mm3/g);(%);(m\U3e32623c/g);" which incidentally change the "\xb2" to "\U3e32623c", but I cannot find a way to search and substitute for "\xb2". I've tried many combinations such as gsub('\xb', ... gsub('\\xb', ... gsub('\\xb2', ... gsub('\xb2', ... etc without success. This is surely due to my ignorance of regexp, but I suspect something arduous here (at least for me !!). Further than this, consider that I'm running a Linux box and that I have to transfer the code to a mac....... I've tried also to see if it possible to change that string at the source, but it is possible only on manual basis, quite inconvenient if you have to process many files. Any help ? I'm quite discouraged ... -- Ottorino-Luca Pantani, Università di Firenze Dip.to di Scienze delle Produzioni Vegetali, del Suolo e dell'Ambiente Forestale (DiPSA) P.zle Cascine 28 50144 Firenze Italia Ubuntu 10.04 -- GNOME 2.30.2 GNU Emacs 23.1.50.1 (x86_64-pc-linux-gnu, GTK+ Version 2.18.0) ESS version 12.04 -- R 2.15.0 ______________________________________________ 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.