Rounding numbers below 0.7 to 0.7

I want to round all the numbers between 0 and 0.7 to 0.7.

for i = 1:numel(efficiency_final)
    if(efficiency_final)<0.7
        effciency_final_array = 0.7;
    else
        efficiency_final_array = efficiency_final;
    end
end

For some reason this code never executes the if statement in the for loop. Only goes to the else statement and basically gives me the same values in efficiency_final in the efficiency_final_array.

Is there a better way of doing this?

[Stephen23]

"Is there a better way of doing this?"

Use the max method shown in Walter Roberson's answer:

https://www.mathworks.com/matlabcentral/answers/505727-rounding-numbers-below-0-7-to-0-7#answer_415775

Answer 1

[Bhaskar R]

efficiency_final(efficiency_final<0.7) = 0.7

[Ashik Chowdhury]

Thank you that worked :)

Answer 2

[Walter Roberson]

Recommended:

efficiency_final_array = max(efficiency_final, 0.7);

For some reason this code never executes the if statement in the for loop

for i = 1:numel(efficiency_final)
    if(efficiency_final(i))<0.7           %notice the indexing
        effciency_final_array(i) = 0.7;
    else
        efficiency_final_array(i) = efficiency_final(i);
    end
end

[Ashik Chowdhury]

Your recommended method works. Thank you :)

Can you tell me whats wrong with the indexing so that i can understand why it didnt work.

[Steven Lord]

The if statement's condition is satisfied only if it is nonempty and all the elements are nonzero.

Your original if statement's condition would only be satisfied if all the elements of efficiency_final were less than 0.7.