MATLAB: I have the store of sum and want to know the index

MATLABmatrix

i have the store_sum=[ 0.18,0.27,0.43,0.57];

and i want to know the index

starting from colum colum 2 in this matrix

Best Answer

See ismembertol(): https://www.mathworks.com/help/releases/R2020a/matlab/ref/ismembertol.html. Something like this

M % name of your matrix
store_sum=[ 0.18,0.27,0.43,0.57];
[~, idx] = ismembertol(store_sum, M(:,2));

idx is index of elements of store_sum in the 2nd column of M.

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MATLAB: How to count non-zero elements in a column but over a specified range

This may be what you want, but your description of the problem is very hard to interpret. You just want the number of non-zero elements in each column of true_spike?

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Calling your matrix data:

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