R help - Mar 2009 - Matrix max by row

I need help about how to obtain the max by row in a matrix.
For example if I have the following matrix:
2 5 3
8 7 2
1 8 4

The max by row will be:
5
8
8

Thank you.

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Ana M Aparicio Carrasco wrote:
> I need help about how to obtain the max by row in a matrix.
> For example if I have the following matrix:
> 2 5 3
> 8 7 2
> 1 8 4
>
> The max by row will be:
> 5
> 8
> 8
>   
matrix(apply(m, 1, max), nrow(m))

vQ

?apply
> x <- rbind(c(2,5,3),c(8,7,2),c(1,8,4))
> apply(x, 1, max)
[1] 5 8 8
>
>

On Sat, Mar 28, 2009 at 7:54 PM, Ana M Aparicio Carrasco
<ana.aparicio at upr.edu> wrote:
> I need help about how to obtain the max by row in a matrix.
> For example if I have the following matrix:
> 2 5 3
> 8 7 2
> 1 8 4
>
> The max by row will be:
> 5
> 8
> 8
>
> Thank you.
>
> ? ? ? ?[[alternative HTML version deleted]]
>
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> PLEASE do read the posting guide
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> and provide commented, minimal, self-contained, reproducible code.
>


-- 
Jim Holtman
Cincinnati, OH
+1 513 646 9390

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