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Erdem Correlation Coefficient #6

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Luiscri opened this issue May 4, 2019 · 0 comments
Open

Erdem Correlation Coefficient #6

Luiscri opened this issue May 4, 2019 · 0 comments

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@Luiscri
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Luiscri commented May 4, 2019

I think there is a little slip when calculating Erdem Correlation coefficient.

Coefficient is calculated like this:

coefficient = a_12/(len(array_1) * a_1 * a_2)

but reading this paper I think that it should be calculated like:

coefficient = a_12/((len(array_1)-1) * a_1 * a_2)

Moreover, I don't get the point of calculating the weight as (coefficient + 1)/2. Could you please explain me the meaning of that last step?
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