Thanks for help with: [R] replace() in matrix

Tord Snall tord.snall at ebc.uu.se
Tue Jul 3 10:54:17 CEST 2001


Dear all,

Thanks to Douglas Bates, Uwe Ligges, Andy Liaw, Giovanni Petris, Ryan
Elmore, Mark Myatt and Guido Masarotto for answering my question on
replacing cells in a matrix!

Guido Masarotto even pointed me to the solution in An introduction to R. I
had searched only in R for beginners.

As a beginner, non-statisticians and only R user at my dept., I really
appreciate the help from you all.

Sincerely,
Tord Snäll


At 18:51 2001-07-02 +0200, you wrote:
>Dear all,
>How do I replace values of a matrix, for exemple I want the matrix
>
>1	24	1	1	1
>24	1	1	1	1
>1	1	1	45	104
>1	1	45	1	92
>1	1	104	92	1
>
>to be replaced by 
>
>0	24	0	0	0
>24	0	0	0	0
>0	0	0	45	104
>0	0	45	0	92
>0	0	104	92	0
>
>Could someone please help me with 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/snall.htm
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-----------------------------------------------------------------------
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/snall.htm
------------------------------------------------------------------------

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