How to replace different values with NaN in a matrix.

Hey guys,

I have this matrix:

Matrix = [50 51 52 53 54 55; 110 111 112 113 114 115; 1 0 0 1 0 0]'

how can i change the values of the second column to NaN, when there is a zero in the third clumn???

Answer 1

[Stephen23]

Matrix = [50 51 52 53 54 55; 110 111 112 113 114 115; 1 0 0 1 0 0].'

Matrix = 6×3

50 110 1 51 111 0 52 112 0 53 113 1 54 114 0 55 115 0

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idx = Matrix(:,3)==0;
Matrix(idx,2) = NaN

Matrix = 6×3

50 110 1 51 NaN 0 52 NaN 0 53 113 1 54 NaN 0 55 NaN 0

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[Paul Hinze]

Thank you!