[Scilab-Dev] Intersection of two vectors

[Arvid Rosén]

Maybe like this:

[dummy, index] = find(kron(a, ones(length(b),1)) - kron(b', ones(a)) == 0)

Don't know if it is fast.

Cheers,
Arvid

28 okt 2012 kl. 19:25 skrev Orbeman <ludo.wag at laposte.net>:

> Hello,
> 
> Does anyone have an idea to modify the native intersect function in Scilab.
> I would like to have all positions (not only for unique element) of a vector
> that is in an other vector. I prefer avoid any loop because it's huge
> matrix.
> 
> For example, a=[1 2 3 2 3 4 5 2 6 3] and b=[2 3] give c=[2 3 4 5 8 10] as
> result.
> 
> Thanks.
> 
> Sorry, for my bad english. I hope its understable.
> 
> 
> 
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Arvid Rosén

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