Count number of times values in vector A are greater than corresponding values in vector B
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Ulrik Nash
on 27 Jun 2011
Commented: Martin Adams
on 19 Oct 2018
Hi Everyone,
Suppose I have two one-column vectors of equal column height, A and B.
For example
A = [1;2;3]
and
B = [2;0;4]
What statement will allow me to count the number of times values in vector A are greater than corresponding values in vector B. In this case, the answer is 1, because only 2 in A is greater than its corresponding value in B, namely 0.
Regards,
Ulrik.
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Accepted Answer
Sean de Wolski
on 27 Jun 2011
n = sum(A>B);
1 Comment
Martin Adams
on 19 Oct 2018
Works great - and a simple solution too.
I used this to drastically speed up my for loop in which I was doing a logic test.
To speed up the process, I added values of the test to be a value inside of the matrix and then counted how many matrix entries were greater than 0.
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