median"1&.|: u
1 5 3 4 4
2 3 3 6 5
5 8 3 8 2
2 8 5 6 3
----- Original Message -----
From: kamakura <[EMAIL PROTECTED]>
Date: Thursday, May 17, 2007 7:58 am
Subject: [Jprogramming] median value of matrix
> Hi all:
>
> require'stats'
>
> ]u=:?.3 4 5$10
> 6 5 9 2 4
> 9 0 7 0 4
> 6 8 3 8 1
> 2 8 0 0 2
>
> 1 6 0 4 4
> 1 3 3 6 6
> 5 7 8 8 2
> 1 9 7 9 9
>
> 1 4 3 9 7
> 2 4 3 7 5
> 3 8 3 6 5
> 7 7 5 6 3
>
> mean"3 u
> 2.66667 5 4 5 5
> 4 2.33333 4.33333 4.33333 5
> 4.66667 7.66667 4.66667 7.33333 2.66667
> 3.33333 8 4 5 4.66667
>
> This is OK.
>
> median"3 u
> 1 6 0 4 4
> 1 3 3 6 6
> 5 7 8 8 2
> 1 9 7 9 9
>
> In this case I would like to have the median value, median of the
> corresponding 3 (i,j) values. That is, (z=:median"3 u) should be
> median of (6, 1, 1), (5, 6, 4), ... and so on. However, the
> result
> is just 1{u. This is not my desire.
>
> How do I get the following matrix?
>
> / median(6,1,1),median(5,6,4),...,median(4,4,7)\ /1 5 ...4\
> | median(9,1,2),median(0,3,4),...,median(4,6,5)| |2 3 ...5|
> | ... |= |... |
> \ median(2,1,7),median(8,9,7),...,median(2,9,3)/ \2 8 ...3/
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