[R] problem with matrix

[ruipbarradas at sapo.pt]

Hello,

See the help page for ?lower.tri.
If your matrix is named 'x', something like

x[upper.tri(x)]

Hope this helps,

Rui Barradas
 

Citando Denis Francisci <denis.francisci at gmail.com>:

> Hi all,
> I've a simple question.
> I have a matrix with same values over and under the diagonal. That's an
> example:
> [,1] [,2]     [,3]
> [1,]      NaN   45 63.43495
> [2,] 45.00000  NaN 90.00000
> [3,] 63.43495   90      NaN
> How can I extract just the three values over (or under) the diagonal and
> convert them in a  vector like this: 45, 63.43495, 90 ?
>
> Thank's in advance
>
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>
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