Cramer's V statistic

Source: R/stats.R

Computes the Cramer's V statistic and Chisquare p value between two categorical variables in data.frame.

cramer(dfm, x, y)

Arguments

dfm

data.frame. probability distributions.

x

character. name of categorical or discrete variable.

y

character. name of another categorical or discrete variable.

Value

data.frame. It has the following variables.:

  • var1 : character. first variable name.

  • var2 : character. second variable name.

  • chisq : numeric. Chisquare statistic.

  • df : integer. degree of freedom.

  • pval : numeric. p value of Chisquare test.

  • coef_corr : numeric. Cramer's V statistic.

See also

theil.

Examples

cramer(mtcars, "gear", "carb")
#> Warning: Chi-squared approximation may be incorrect
#>   var1 var2   chisq df       pval coef_corr
#> 1 gear carb 16.5181 10 0.08573092 0.5080307