Re: [eigen] Sums

[Benjamin Schindler <bschindler@xxxxxxxxxxxxxxx>]

Hi Gael

Interesting... I just tried the same (outputting the vector) and it 
seems work. May be this was a debugger display issue?

Sorry for the noise
Benjamin

Gael Guennebaud wrote:
> Hi Benjamin,
>
> I cannot reproduce your issue. I tried:
>
> Matrix<float, 3, Dynamic> kern2(3, 100);
> VectorXf grad_sum = kern2.rowwise().sum();
> std::cout << grad_sum.rows() << " " << grad_sum.cols() << "\n";
>
> and I get as output:
>
> 3 1
>
> can you give us a wider view of your code ?
>
> cheers,
> Gael.
>
> On Wed, Dec 3, 2008 at 4:40 PM, Benjamin Schindler 
> <bschindler@xxxxxxxxxxxxxxx <mailto:bschindler@xxxxxxxxxxxxxxx>> wrote:
>
>     Hi
>
>     In my code, the following gets executed:
>
>     VectorXf grad_sum = kern2.rowwise().sum();
>
>     After executing, I noticed that the m_rows member is set to
>     something really high, but kern2 is a 3xN Matrix, so the result
>     should be a Vector of dimension 3
>     Is this intended or a bug?
>
>     Thanks
>     Benjamin
>
>     ---


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