
	Kruskal-Wallis rank sum test

data:  ARRAY and categs
Kruskal-Wallis chi-squared = 98.599, df = 3, p-value < 2.2e-16

Multiple comparison test after Kruskal-Wallis 
p.value: 0.05 
Comparisons
                                              obs.dif critical.dif difference
jfreechart-1.0.0-RandomMutantSampling        31.93333     23.69541       TRUE
jfreechart-1.0.0-RandomOperatorSelection     80.93333     23.69541       TRUE
jfreechart-1.0.0-SelectiveMutation           67.13333     23.69541       TRUE
RandomMutantSampling-RandomOperatorSelection 49.00000     23.69541       TRUE
RandomMutantSampling-SelectiveMutation       35.20000     23.69541       TRUE
RandomOperatorSelection-SelectiveMutation    13.80000     23.69541      FALSE
