Re: element extraction from vector

[Vic Norton]

v = u(u != 0); w = [1 : length(u)](u !=0)';

On Dec 26, 2009, at 7:20 PM, address@hidden wrote:

> Hi the Octavers,
> I would like to ask you: if we have a vector u of this form:
> u=[1 0 0 0 0 -1 0 0 0 0 0 1]';
> How we can construct a program that extract two vectors v and w from u, where 
> the elements of v are 1 and -1, i.e v=[1,-1,1]', and the elements of w are 
> the number of observations of the elements of v in u, i.e w=[1 6 12]'.
> Many thanks in advance.
> Hassen.
> 
> 
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