
Ublas : 
From: Vento Neicapelli (lascoscazzato_at_[hidden])
Date: 20050119 20:39:12
Hi Michael
Thanks for your answer. I tried iterator1 and iterator2 on a sparse
matrix...but they are good to get rows and column....(with 0). How to get
only the nonzeros? If you have some examples, please attach them.
Vento
>On Wednesday 19 January 2005 18:54, Vento Neicapelli wrote:
>>I start evaluating uBlas lib. Who know how to get the nonzero elements of
>>a
>>sparse_matrix (or compressed_matrix)? Is there an iterator?
>Yes iterators are the way to do this. For all sparse types they only
>traverse the structurally nonzero elements. 'Structurally' means that the
>actual value of these elements may be zero due to a previous calculation.
>Do you need an example of using matrix iterators?
>Michael
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