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I have this piece of Python code that fills up a 2d matrix in a for loop
img=zeros((len(bins_x),len(bins_y)))
for i in arange(0,len(ix)):
img[ix[i]][iy[i]]=dummy[i]
Is it possible to use a vectorial operation for the last two lines of code? Is there also something that might speed up the calculation?
If ix, iy are index sequences: