# NOT RUN {
## no class correlations: corrected Rand almost zero
g1 <- sample(1:5, size=1000, replace=TRUE)
g2 <- sample(1:5, size=1000, replace=TRUE)
tab <- table(g1, g2)
randIndex(tab)
## uncorrected version will be large, because there are many points
## which are assigned to different clusters in both cases
randIndex(tab, correct=FALSE)
comPart(g1, g2)
## let pairs (g1=1,g2=1) and (g1=3,g2=3) agree better
k <- sample(1:1000, size=200)
g1[k] <- 1
g2[k] <- 1
k <- sample(1:1000, size=200)
g1[k] <- 3
g2[k] <- 3
tab <- table(g1, g2)
## the index should be larger than before
randIndex(tab, correct=TRUE, original=TRUE)
comPart(g1, g2)
# }
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