vcd (version 0.1-3.5)

assoc.stats: Association Statistics

Description

Computes the Chi-Square test, the Likelihood Ratio Chi-Square test, the phi-coefficient, the the contingency coefficient and Cramer's V.

Usage

assoc.stats(x)

Arguments

x

a rxc-table.

Value

• A list with components:
• chisq.tests
  a 2x3 table with the chisquare statistics.
• phi
  The phi-coefficient.
• cont
  The contingency coefficient.
• cramer
  Cramer's V.

References

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

Examples

data(Arthritis)
tab <- xtabs(~Improved + Treatment, data = Arthritis)
summary(assoc.stats(tab))