[R] a max value for each column

Muhammad Subianto subianto at gmail.com
Mon Oct 17 14:34:33 CEST 2005


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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