vcd (version 1.3-2)

assocstats: Association Statistics

Description

Computes the Pearson chi-Squared test, the Likelihood Ratio chi-Squared test, the phi coefficient, the contingency coefficient and Cramer's V.

Usage

assocstats(x)

Arguments

x

an $r \times c$ table.

Value

• A list with components:
• chisq_tests
  a $2 \times 3$ table with the chi-squared statistics.
• phi
  The absolute value of the phi coefficient.
• cont
  The contingency coefficient.
• cramer
  Cramer's V.

References

Michael Friendly (2000), Visualizing Categorical Data. SAS Institute, Cary, NC.

Fleiss, J. L. (1981). Statistical methods for rates and proportions (2nd ed). New York: Wiley

Examples

data("Arthritis")
tab <- xtabs(~Improved + Treatment, data = Arthritis)
summary(assocstats(tab))