Re: [R] replace text at certain positions in a file

2010-11-02 Thread Gabor Grothendieck
On Tue, Nov 2, 2010 at 6:20 AM, RINNER Heinrich wrote: > Hello, > > thanks again for this nice solution using sub and regular expressions! > However, in real life I have to overwrite more than two positions with blanks > (say 50 or so), so I was trying to modify this in the following way: > >> s

Re: [R] replace text at certain positions in a file

2010-11-02 Thread RINNER Heinrich
") in the replacement part, so something is wrong in my expression there. I just can't figure out what... Kind regards Heinrich. > -Ursprüngliche Nachricht----- > Von: Gabor Grothendieck [mailto:ggrothendi...@gmail.com] > Gesendet: Donnerstag, 28. Oktober 2010 13:40 > An

Re: [R] replace text at certain positions in a file

2010-10-28 Thread Gabor Grothendieck
On Thu, Oct 28, 2010 at 5:26 AM, RINNER Heinrich wrote: > Hello, > > I am working with R version 2.10.1 under windows. > In a text file, I need to replace all characters at certain column positions > with blanks. > For example, say the file contains two lines and looks like this: > > ab34cd78e >

Re: [R] replace text at certain positions in a file

2010-10-28 Thread Uwe Ligges
I'd just import the positions I like using read.fwf() or otherwise you can replace strings at certain positions, see ?substr Uwe Ligges On 28.10.2010 11:26, RINNER Heinrich wrote: Hello, I am working with R version 2.10.1 under windows. In a text file, I need to replace all characters at ce

[R] replace text at certain positions in a file

2010-10-28 Thread RINNER Heinrich
Hello, I am working with R version 2.10.1 under windows. In a text file, I need to replace all characters at certain column positions with blanks. For example, say the file contains two lines and looks like this: ab34cd78e fg3 hi78j I'd like to replace everything at positions 3-4 and 7-8 with b