Thread Subject:

Selecting first n elements of V that meet criteria

Suppose I have a vector V

V = [1;0;1;1;0;1;1;0;0;1]

Now suppose I wish to create a second vector, S, which consists of the index values for the first n elements of V equal to 1.

So for example, assuming n = 3, the code should generate:

S = [1;3;4]

How might that be done?

On 1/23/2012 3:57 PM, Ulrik Nash wrote:
...

> ... I wish to create a second vector, S, which consists of the
> index values for the first n elements of V equal to 1.

...

doc find % NB optional second argument

--

dpb <none@non.net> wrote in message <jfklrh$k3c$1@speranza.aioe.org>...
> On 1/23/2012 3:57 PM, Ulrik Nash wrote:
> ...
>
> > ... I wish to create a second vector, S, which consists of the
> > index values for the first n elements of V equal to 1.
>
> ...
>
> doc find % NB optional second argument
>
> --
Thank you dpb! :-)