
	Kruskal-Wallis rank sum test

data:  ARRAY and categs
Kruskal-Wallis chi-squared = 85.075, df = 3, p-value < 2.2e-16

Multiple comparison test after Kruskal-Wallis 
p.value: 0.05 
Comparisons
                                              obs.dif critical.dif difference
commons-codec-1.4-RandomMutantSampling       76.43333     23.69541       TRUE
commons-codec-1.4-RandomOperatorSelection    48.83333     23.69541       TRUE
commons-codec-1.4-SelectiveMutation          17.66667     23.69541      FALSE
RandomMutantSampling-RandomOperatorSelection 27.60000     23.69541       TRUE
RandomMutantSampling-SelectiveMutation       58.76667     23.69541       TRUE
RandomOperatorSelection-SelectiveMutation    31.16667     23.69541       TRUE
