[R] write output in a custom format

From: baptiste Auguié <ba208_at_exeter.ac.uk>
Date: Thu, 14 Feb 2008 15:59:16 +0000


Hi,

I need to create a text file in the following format,

> 1 100.0 0
> 0 0
> 1 1
> 0 0
> 1 1
> #
> 1 100.0 0
> 0 0
> 0 1
> 1 0
> 1 1

...

where # is part of the format and not a R comment.

Each block (delimited by #) consists of a first line with three values, call it dose, and a list of (x,y) coordinates which are a matrix or data.frame,

> particle <- list(dose=c(1,100.0,0),pos=data.frame(x=c(0,1,0,1),y=c
> (0,1,0,1)))
>
> print(particle)

I'd like to establish a connection to a file and append to it a "particle" block in the format above, or even write the whole file at once.

Because different lines have a different number of elements, I couldn't get write.table to work in this case, and my attempts at sink (), dump(), writeLines(), writeChar() all turn into really dirty solutions. I have this feeling I'm overlooking a simple solution.

Any help welcome,

baptiste


Baptiste Auguié

Physics Department
University of Exeter
Stocker Road,
Exeter, Devon,
EX4 4QL, UK

Phone: +44 1392 264187

http://newton.ex.ac.uk/research/emag
http://projects.ex.ac.uk/atto



R-help_at_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. Received on Thu 14 Feb 2008 - 16:07:16 GMT

Archive maintained by Robert King, hosted by the discipline of statistics at the University of Newcastle, Australia.
Archive generated by hypermail 2.2.0, at Thu 14 Feb 2008 - 17:30:14 GMT.

Mailing list information is available at https://stat.ethz.ch/mailman/listinfo/r-help. Please read the posting guide before posting to the list.

list of date sections of archive