correlation between binary strings
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hi everyone I want to find the correlation between these two binary strings x and y
x=[1111111111111111111111111111111111111111111111111111111111111111];
y=[1000000001011001010110111110010101011010010000100010111101111110];
using the formula attached as figure. the value of E is 0.05 or 50%.
Thank you in advance
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Answers (2)
Maria Imdad
on 9 Apr 2021
Edited: Maria Imdad
on 9 Apr 2021
2 Comments
Walter Roberson
on 9 Apr 2021
If the values are represented by 0 and 1, then it seems to me using 0.5 would make more sense...
Walter Roberson
on 9 Apr 2021
R = sum((x - E).*(y - E)) ./ (sqrt(sum((x-E).^2)) .* sqrt(sum((y-E).^2)));
2 Comments
Walter Roberson
on 9 Apr 2021
It handles all of x and all of y, assuming that they are the same size. It uses vector operations so it does not need to loop. The sigma operation in the equation is sum() here.
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