makeCatEquation2(X="wt",Y="mpg")
makeCatEquation2(X="wt",Y="mpg",W="cyl")
makeCatEquation2(X="wt",Y=c("cyl","am"),prefix="a")
makeCatEquation2(X="wt",Y=c("hp","vs"),W="cyl",prefix="a")
makeCatEquation2(X="wt",Y=c("hp","vs"),W=c("cyl","am"),prefix="a",pos=list(1,2))
makeCatEquation2(X="wt",Y=c("hp","vs"),W=c("cyl"),prefix="a",pos=list(1))
makeCatEquation2(X="wt",Y=c("hp","vs"),W=c("cyl"),prefix="a",pos=list(c(1,2)))
makeCatEquation2(X=c("hp","vs"),Y="mpg",W=c("cyl"),prefix="b",pos=list(c(1)))
makeCatEquation2(X=c("hp","vs"),Y="mpg",W=c("cyl"),prefix="b")
makeCatEquation2(X=c("hp","vs"),Y="mpg",W=c("cyl"),prefix="b",pos=list(c(1,2)))
cat(makeCatEquation2(X="wt",Y="carb",W=c("am","hp")))
cat(makeCatEquation2(X="X",Y=c("M1","M2","M3"),W=NULL,prefix="a",serial=TRUE))
cat(makeCatEquation2(X="X",Y=c("M1","M2","M3"),W=NULL,prefix="a"))
cat(makeCatEquation2(X="X",Y=c("M1","M2"),prefix="a",mode=1,serial=TRUE))
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