[R] distance matrix as text file - how to import?

[Paul Johnson]

On Tue, Apr 8, 2008 at 1:50 PM, Hans-Jörg Bibiko <bibiko at eva.mpg.de> wrote:
> Dear all,
>
>  I have -hopefully- a tiny problem.
>
>  I was sent a text file containing a distance matrix à la:
>
>  1
>  2 3
>  4 5 6
>


Try this! I put your test data in "text.txt" and voila:


mat <- matrix(0, 3,3)

mat[row(mat) >= col(mat)] <- scan("test.txt")


I found this Idea after "RSiteSearch("scan triangular") led to this
item as the very first link:

http://finzi.psych.upenn.edu/R/Rhelp02a/archive/22369.html


PJ


-- 
Paul E. Johnson
Professor, Political Science
1541 Lilac Lane, Room 504
University of Kansas