Selecting columns that meet a condition

Hi,

I have a matrix of 12x101.

I am looking to then select, out of the matrix, collumns that have a value above a threshold.

E.g- A=

88 79 56

91 89 95

94 87 84

For B =A>90

B=

88 56

91 95

94 84

I feel like this should be simple, but I am unsure.

Thank you.

Answer 1

[Davide Masiello]

Try with this:

A = [88  79   56; 91  89  95; 94  87  84];
threshold = 90;
l = find(sum(A>threshold,1));
B = A(:,l);

[H]

Thank you!!