Given two samples x and y, perform a chisquare test for homogeneity of the null hypothesis that x and y come from the same distribution, based on the partition induced by the (strictly increasing) entries of c.
For large samples, the test statistic chisq approximately follows a
chisquare distribution with df = length (c) degrees of
freedom.
The p-value (1 minus the CDF of this distribution at chisq) is returned in pval.
If no output argument is given, the p-value is displayed.
Package: statistics