Pearson correlation coefficient (PCC)
Pearson correlation coefficient (PCC) measures linear correlation between two sets of data as the ratio between the covariance of two variables and the product of their standard deviations. It is a normalized measurement of the covariance, where the result is between −1 and 1.
For an in-depth discussion of the PCC algorithm, see these external resources:
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Pearson correlation coefficient in Wikipedia
