calculation of chi-squared-coefficient.
library(vcd)
assocstats(x)
(For the chi coefficient we are intersted in the Pearsons chi squared)
Interpretation
𝝌𝟐 is small (close to zero) if 𝑿 and 𝒀 do not depend on each other
𝝌𝟐 is large if 𝑿 and 𝒀 depend on each other
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