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Re: sparse matrix promoted to full for no reason
From: |
nomad |
Subject: |
Re: sparse matrix promoted to full for no reason |
Date: |
Fri, 20 Jul 2007 10:37:54 -0700 (PDT) |
dbateman wrote:
>
>
>
> nomad wrote:
>>
>> I tried
>>
>> s = sparse(2,2);
>> s(1,1) = 1; %fine here
>> s(2,2) = 2; %promoted to full
>>
>> whos s
>>
>> What is it that I am doing wrong?
>>
>> thanks,
>> krishna.
>>
>
> Nothing, this expected behavior for octave, as the full version takes less
> space than the sparse one.
>
> D.
>
>
>
Unfortunately your reason does not seem to be right. This is a generic
problem, try the following.
s=speye(1000);
s(1,1)=1; %promoted to full
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