MATLAB: If a number in a matrix is <9 add 5 to it

Question

Hi

I was reading on Matlab refrences :

A = 4×4

16 2 3 13

5 11 10 8

9 7 6 12

4 14 15 1

Replace all values less than 9 with the value 10.

A(A < 9) = 10

If I want to add 5 to the values that are less than 9 rather than repalce them with 10 how would I go about it please?

Thanks

Answer 1

Use the same selection on the right hand side of the equal sign

A(A<9) = A(A<9) + 5

I myself prefer to code it like this

tf = A < 9
A(tf) = A(tf) + 5