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Re: Initializing variables


From: Ben Abbott
Subject: Re: Initializing variables
Date: Sat, 21 Jun 2008 09:42:55 -0400


On Jun 21, 2008, at 12:23 AM, Sergei Steshenko wrote:

Applications From Scratch: http://appsfromscratch.berlios.de/

--- On Fri, 6/20/08, asha g <address@hidden> wrote:

From: asha g <address@hidden>
Subject: Initializing variables
To: address@hidden
Date: Friday, June 20, 2008, 5:06 PM
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

Your memory consumption is proportional to 'niter'.

And why do you need it to be this way ?

Regards,
 Sergei.

Sergei,

Are you asking why Asha is saving the values of "vvvv", "abhh", etc, for each iteration?

Asha, do you use the contents of "vvvv", "abhh", etc after the final iteration?

Ben


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