I am running a stepwise LDA to look at how to discriminant against two groups (P vs NP) based on 4 variables. I ran the lda function with no problems but when I try to do the stepwise function I get this message:
Error in if (any(member < 0) || any(member > 1)) stop("membership values (posterior probabilities)", :
missing value where TRUE/FALSE needed
In addition: Warning message:
In FUN(newX[, i], ...) : no non-missing arguments to min; returning Inf
this is my line for the forward LDA stepclass(ï..Pregnancy.State ~ Rad.Length+Circ.Length+Area+X.Collagen.Content, data=both.pulm, method="lda", fold=35, direction="forward")
I ran this on 3 other groups as well with no problems
