[R] a max value for each column

[TEMPL Matthias]

apply(points, 2, max) 
Should do the job.

For details look at ?apply

Best,
Matthias

> 
> Dear R-list
> 
> I have a dataset like below (points), how can I produce a max 
> value for 
> each column. I need a result like (I hope my eye correct):
> 
>        [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10] [,11] [,12]
>   [1,]   21    1   10   99   14   19    6    9    5     8     5     7
> 
> This is a small dataset from 10000 row.
>  > points
>        [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10] [,11] [,12]
>   [1,]   21    0    9   16    1   11    5    2    5     8     2     5
>   [2,]   19    1   10   93    7    0    0    4    1     6     5     1
>   [3,]   13    0    4   30    5    7    1    1    5     6     3     6
>   [4,]    5    1    9   61    6   19    2    9    5     1     1     6
>   [5,]    2    1    1   99    1   18    1    3    2     8     1     2
>   [6,]    7    0    5   45   14    4    6    5    1     6     5     6
>   [7,]    0    0    6   89   14    3    2    0    3     7     2     6
>   [8,]   15    0    1   30   14   17    3    2    3     3     3     5
>   [9,]   14    0    5   28    8   10    1    6    5     2     3     6
> [10,]   12    1    4   65    6    2    4    1    4     4     4     7
> [11,]   14    1    1    3   12   10    5    7    4     3     3     4
> [12,]   15    0    1   55    7    7    1    5    3     7     0     2
> [13,]   14    0    5    4    7   11    2    0    4     2     2     3
> [14,]   13    0    6   94    6    2    4    9    3     4     0     3
> [15,]   21    1    5   79   14   14    6    3    5     6     5     6
>  >
> 
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