How to slide a smaller matrix over larger matrix and employ element wise multiplication?

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maaham banu
maaham banu 2020-2-19
评论： maaham banu 2020-2-19
I have one matrix of THETA_F1 which is 512x509 and THETA_F2 256x321. I want to slide the smaller matrix over the larger one and multiply them and store the values in another matrix and then plot them.
The error I am facing is that matrix dimensions do not agree. Rows and Coloumns is basically the size of THETA_F1
for i=1:3:rows
for j=1:3:coloumns
corr = THETA_F1.*THETA_F2;
end
end
  2 个评论
Walter Roberson
Walter Roberson 2020-2-19
You would be getting out (512-256+1) * (509-321+1) = 257*189 = 48573 different matrices of results, each 256 x 321. What kind of plotting presentation were you thinking of doing that could represent nearly 50000 different arrays that size? How large of a display do you have, exactly? When I looked up the largest known display in the world about a year ago, it was about 10000 times too small to plot all of that at the same time.

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