Delete rows in a matrix based on their first number in the row.

I have two matrices.

Del= [12 3 5; 15 2 7; 20 4 9; 10 2 1]

Close= [15 ; 10; 20]

I need to get rid of the Del rows that start with the values in Close. In this situation I would need to get ride of rows 2, 3, 4

Thank you

Answer 1

[the cyclist]

Del(ismember(Del(:,1),Close),:) = [];

[Patrick Guarente]

Thank you so much

[the cyclist]

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