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lydia
2007 Jul 26
2
logistic regression
...1, .9, .1)), 1), labels = F)
t<-table(fitc)
#Calculate observed and expected values in ea group
E <- matrix(0, nrow=10, ncol = 2)
O <- matrix(0, nrow=10, ncol=2)
for (j in 1:10) {
E[j, 2] = sum(fit[fitc==j])
E[j, 1] = sum((1- fit)[fitc==j])
O[j, 2] = sum(pcdata$lymdis[fitc==j])
O[j, 1] = sum((1-pcdata$lymdis)[fitc==j])
}
Here is the error message: Error in Summary.factor(..., na.rm = na.rm) :
sum not meaningful for factors
I understand what it means; I just can't figure out how to get around it or how to get the out...