Displaying 1 result from an estimated 1 matches for "ssw_grid40km".
2011 Feb 21
0
r-square for cluster
...# there is 22 clusters
{
data_group <- subset(grid40km.data,grid40km.cluster==i, select=c(X1, X2, X3, X4, X5))
SSgroup <- (nrow(data_group-1)*sum(apply(data_group,2,var))) # SS for all variables for a given cluster
SStot_grid40km=append(SStot_grid40km, SSgroup,after=length(SStot_grid40km))
}
ssw_grid40km = sum(SStot_grid40km) #withinSS (??) as the sum of SS for all clusters
ssbetween_grid40km = SSTot-ssw_grid40km
RSQ_grid40km2 = ssbetween_grid40km/SSTot # R-square
Am I right? Does this correspond to SAS's R2?
Many thanks,
Yan
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