Hey,
I know that the signal acquired is in the form of a matrix. How can I multiply another matrix with it?
Matrix Multiplication
Matrix Multiplication
Regards,
Karthik
Karthik
Re: Matrix Multiplication
Hi,
You can use a Simple DSP, with 2 input matrices.
Equation : A*B
Be sure to have synchronized input streams.
Hope this helps.
Laurent
You can use a Simple DSP, with 2 input matrices.
Equation : A*B
Be sure to have synchronized input streams.
Hope this helps.
Laurent
Re: Matrix Multiplication
I am trying to use a static matrix (one that I have) to multiply with the matrix from the signal.lbonnet wrote:Hi,
You can use a Simple DSP, with 2 input matrices.
Equation : A*B
Be sure to have synchronized input streams.
Hope this helps.
Laurent
Should I use the DSP box stil?
Regards,
Karthik
Karthik
Re: Matrix Multiplication
The Simple DSP does not multiply matrices.
karthiks, there is no general purpose matrix multiplication box as this is not really meaningful for the scenario author, this should probably be done at a lower level, by a developer.
Still, you can multiply a vector of samples by a matrix using the Spatial Filter box but this may not be what you want.
What is the purpose of that multiplication you want to achieve ?
Hope this helps,
Yann
karthiks, there is no general purpose matrix multiplication box as this is not really meaningful for the scenario author, this should probably be done at a lower level, by a developer.
Still, you can multiply a vector of samples by a matrix using the Spatial Filter box but this may not be what you want.
What is the purpose of that multiplication you want to achieve ?
Hope this helps,
Yann
Re: Matrix Multiplication
Hey Yann,yrenard wrote:The Simple DSP does not multiply matrices.
karthiks, there is no general purpose matrix multiplication box as this is not really meaningful for the scenario author, this should probably be done at a lower level, by a developer.
Still, you can multiply a vector of samples by a matrix using the Spatial Filter box but this may not be what you want.
What is the purpose of that multiplication you want to achieve ?
Hope this helps,
Yann
Thank you for the reply.
I am trying to do an ICA calculation which involves multiplying two matrices (one of them being a static pre-calculated matrix and the other a live streaming signal matrix).
Regards,
Karthik
Karthik
Re: Matrix Multiplication
Dear Karthik,
if you do ICA, you then probably want to apply a spatial filter Just have a look at its documentation ; you could also be interested in one of the xDAWN p300 speller or the CSP motor imagery scenarios which actually use similar filters... and of course, don't forget to share your ICA training box
Hope this helps,
Yann
if you do ICA, you then probably want to apply a spatial filter Just have a look at its documentation ; you could also be interested in one of the xDAWN p300 speller or the CSP motor imagery scenarios which actually use similar filters... and of course, don't forget to share your ICA training box
Hope this helps,
Yann