Description Usage Arguments Details Value References
The Yule coefficient of is a correlation coefficient applied to dichotomous data. Given a two x two table of counts a b R1 c d R2 C1 C2 n or a vector c(a,b,c,d) of frequencies.
1 | Yule(x)
|
x |
a 1 x 4 vector or a matrix 2 x 2 of frequencies. |
Y |
if Y is true return Yule's Y coefficient of colligation. |
The coefficient of Yule is calculated from (ad - bc)/(ad + bc). This is the number of pairs in agreement (ad) - the number in disagreement (bc) over the total number of paired observations.
the value of the Yule Q coefficient.
Yule, G.U. (1912). On the methods of measuring the association between two attributes. Journal of the Royal Statistical Society, 75, 579-652.
Warrens, Matthijs (2008), On Association Coefficients for 2x2 Tables and Properties That Do Not Depend on the Marginal Distributions. Psychometrika, 73, 777-789.
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