Make loop more efficient

Hi! I am new to Matlab and I am currently going through coding exerices to become more skilled at it.

I would appreciate any help with making my code below more efficient:

---I have an nxn matrix A and I want to increase all elements below a specific cutoff (let's say 0.5) by a certain value (let's say 1).

This is what I have so far (which thankfully works, but feels bulky).

Thanks!

for i=1:numel(A)

if A(i) < 0.5

A(i) = A(i) +1;

end

end

disp(A)

Answer 1

[Matt J]

Simpler:

A=rand(5),

A = 5×5

0.7601 0.9824 0.6751 0.1206 0.7516 0.8308 0.6818 0.7500 0.7429 0.8306 0.7416 0.4895 0.6510 0.5861 0.3351 0.4752 0.9935 0.6044 0.1761 0.5067 0.9184 0.4375 0.2523 0.3061 0.4270

I=(A<0.5);

A(I)=A(I)+1,

A = 5×5

0.7601 0.9824 0.6751 1.1206 0.7516 0.8308 0.6818 0.7500 0.7429 0.8306 0.7416 1.4895 0.6510 0.5861 1.3351 1.4752 0.9935 0.6044 1.1761 0.5067 0.9184 1.4375 1.2523 1.3061 1.4270

[Panos Kerezoudis]

awesome, thank you!