I have a matrix with several optionprice data. Now I am trying to delete rows based on a for loop and if criteria. if the value of column 8 is >1.1 or <0.9, the whole row should be deletet. I have used the following code, but I always get an error message:
matrix(i,:) = ; end
why does that no work and what ways are there to delete those rows? the matrix is a double matrix
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numel(matrix) is the number of all elements. When you have deleted some rows already, the matrix has less elements and matrix(i,8) might be not existing anymore already.
You do not need a loop, to solve this problem:
matrix(matrix(:, 8) > 1.1, :) =