How to calculate cosine similarity between two frequency vectors in MATLAB?

Question

I need to find the cosine similarity between two frequency vectors in MATLAB.

Example vectors:

a = [2,3,4,4,6,1]
b = [1,3,2,4,6,3]

How

Answer 1

If you have the Statistics toolbox, you can use the pdist2 function with the 'cosine' input flag, which gives 1 minus the cosine similarity:

a = [2,3,4,4,6,1];
b = [1,3,2,4,6,3];
result = 1-pdist2(a, b, 'cosine');