
	Kruskal-Wallis rank sum test

data:  ARRAY and categs
Kruskal-Wallis chi-squared = 73.601, df = 3, p-value = 7.226e-16

Multiple comparison test after Kruskal-Wallis 
p.value: 0.05 
Comparisons
                                               obs.dif critical.dif difference
joda-time-2.8-RandomMutantSampling           64.900000     23.69541       TRUE
joda-time-2.8-RandomOperatorSelection        46.766667     23.69541       TRUE
joda-time-2.8-SelectiveMutation              68.333333     23.69541       TRUE
RandomMutantSampling-RandomOperatorSelection 18.133333     23.69541      FALSE
RandomMutantSampling-SelectiveMutation        3.433333     23.69541      FALSE
RandomOperatorSelection-SelectiveMutation    21.566667     23.69541      FALSE
