Initializing variables

[Ben Abbott]

On Jun 20, 2008, at 8:06 PM, asha g wrote:

> I have a program with several variables - all are vectors or matrices.
>
> Now do I initialize the ones I need to save and plot at the  
> beginning of the program  or all the variables that are used in the  
> program?
> eg - if I need vvvv and abhh do I just write:
>
> vvvv= zeros(niter, N); abhh = zeros(niter,N);
>
> before the start of the script file or shd I do that to each one of  
> them. When niter is large and N is large, this takes up lots of  
> space and slows down operations. However, when I don't do it to all  
> the variables I am not sure what is going on especially as there are  
> many loops inside.
>
> I hope this is clear.
> Thanks
> Asha

I recommend you initialize all arrays (vectors and matrices).

Ben