phi coefficient การใช้

• Otherwise, the phi coefficient cannot reach those minimal and maximal values.
• The phi coefficient has a maximum value that is determined by the distribution of the two variables.
• Other metrics include Youden's J statistic, the uncertainty coefficient, the Phi coefficient, and Cohen's kappa.
• There is not any seperate Wikipedia article for Phi coefficient as far as I know, and the simple formula above is not quoted either.
• Although computationally the Pearson correlation coefficient reduces to the phi coefficient in the 2? case, the interpretation of a Pearson correlation coefficient and phi coefficient must be taken cautiously.
• Although computationally the Pearson correlation coefficient reduces to the phi coefficient in the 2? case, the interpretation of a Pearson correlation coefficient and phi coefficient must be taken cautiously.
• I do not think I am allowed to include URLs, but searching on Google for Phi coeficcient and Richard Lowry should bring you to a page that calculates the phi coefficient online.
• Note, however, that the F-measures do not take the true negatives into account, and that measures such as the Phi coefficient, Matthews correlation coefficient, Informedness or Cohen's kappa may be preferable to assess the performance of a binary classifier.
• The tetrachoric correlation coefficient provides " a convenient measure of [ the Pearson product-moment ] correlation when graduated measurements have been reduced to two categories . " The tetrachoric correlation should not be confused with the Pearson product-moment correlation coefficient computed by assigning, say, values 0 and 1 to represent the two levels of each variable ( which is mathematically equivalent to the phi coefficient ).