[R] hwo can i get a vector that...

[Petr Klasterecky]

?apply
?which.max

 > m <- matrix(rnorm(12),nrow=4)
 > m
 > apply(m,1,which.max)

Petr

bunny , lautloscrew.com napsal(a):
> dear all,
> 
> how can i get a vector that shows the number of the column of matrix  
> that contains the maximum of the row ??
> can´t believe in need a loop for this...
> 
> i have a  100 x 3 matrix and want to get a 100 x 1 vector with values  
> 1,2,3 .
> 
> there must be a simple solution. i just cannot find it. i think am  
> searching on the wrong end.
> 
> thx for help in advance.
> 
> m.
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
> 
> 

-- 
Petr Klasterecky
Dept. of Probability and Statistics
Charles University in Prague
Czech Republic