[R] elegant way to minus on each row of a matrix

[Dimitris Rizopoulos]

try this:

mat <- matrix(1:9, 3, 3, TRUE)
dat <- as.data.frame(mat)
vec <- 1:3

result.mat <- mat - vec
result.dat <- dat - vec
result.mat
result.dat


I hope it helps.

Best,
Dimitris

----
Dimitris Rizopoulos
Biostatistical Centre
School of Public Health
Catholic University of Leuven

Address: Kapucijnenvoer 35, Leuven, Belgium
Tel: +32/(0)16/336899
Fax: +32/(0)16/337015
Web: http://med.kuleuven.be/biostat/
      http://www.student.kuleuven.be/~m0390867/dimitris.htm


Quoting Bo Zhou <bozhou1981 at hotmail.com>:

>
> How to do this in an elegant way formatrix/data frame/zoo?
>
> mat=
> 1 2 3
> 4 5 6
> 7 8 9
>
> vector=
> 1
> 2
> 3
>
>
> result=
> 0 1 2
> 2 3 4
> 4 5 6
>
> ie
> 1-1  2-1  3-1
> 4-2  5-2  6-2
> 7-3  8-3  9-3
>
> Thanks in advance.
>
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