[R] standardising a data matrix

[Tord Snall]

Dear all,
I would like to standardise my data. Here is an exemple for two columns:

> onorm<- read.table("onorm.txt", header=T)
> names(onorm)
[1] "on1" "on2" "on3" "on4" "on5"
> norm<- data.frame((onorm$on1-mean(onorm$on1))/stdev(onorm$on1),
(onorm$on2-mean(onorm$on2))/stdev(onorm$on2))

I would be happy however not having got to do this coulumnwise since I have
about 80 columns. Could someone please give a hint on how to do this for
the whole matrix. 

The names of the coulumns are on1, on2 etc. as above. I want the columns in
the new standardised dataset to have the names son1, son2 etc, i.e. adding
an s to all the original column names. How do I do that?

Thanks in advance!

Sincerely,
Tord Snäll

-----------------------------------------------------------------------
Tord Snäll
Avd. f växtekologi, Evolutionsbiologiskt centrum, Uppsala universitet
Dept. of Plant Ecology, Evolutionary Biology Centre, Uppsala University
Villavägen 14			
SE-752 36 Uppsala, Sweden
Tel: 018-471 28 82 (int +46 18 471 28 82) (work)
Tel: 018-25 71 33 (int +46 18 25 71 33) (home)
Fax: 018-55 34 19 (int +46 18 55 34 19) (work)
E-mail: Tord.Snall at ebc.uu.se
http://www.vaxtbio.uu.se/resfold/tord_s.htm
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