Help with if function

I tried searching for my answer, but as a matlab novice I'm struggling to make sense of some of the information out there.

I am trying to replicate a basic if function from excel as the data size has become too vast for the software to run smoothly. Basically I want to say:

If 'value in column A' is greater than 'constant value stored as a variable' then return 1, otherwise return zero. Further to this, I would like the information returned as a column vector.

I tried fiddling around with for loops but couldn't get the desired result.

[Stephen23]

Stop "fiddling around with for loops", and learn to use MATLAB:

http://www.mathworks.com/help/matlab/getting-started-with-matlab.html

https://www.mathworks.com/matlabcentral/answers/228557-experts-of-matlab-how-did-you-learn-any-advice-for-beginner-intermediate-users

Answer 1

[Azzi Abdelmalek]

cste=10
A=[23 5 6 11 8 20 0 1]
idx=A>cste