Simplified computation of the multivariate permutation test for arbitrarily censored survival data.
This paper points out that the permutational covariance matrix of the multivariate generalization of Gehan's test on censored survival data enjoys the useful property that a generalized inverse may be explicitly computed. This leads to an exceedingly simple formula for the test statistic. The ease of the resulting calculations is displayed with a brief example from exercise stress testing.
D005080:Exercise Test; D006801:Humans; D013223:Statistics as Topic