Dear R-friends,
I am trying to use the Zelig library to simulate the following model:
z.out<-zelig(formula = y ~ x1*x2 + x3 + x4 + x5, model="ls", data =
my.data, weights = my.weights)
Since the regression is weighted before running the regression I used
the procedure:
zelig2ls <- function(formula, model, data, M, ...) {
mf <- match.call(expand.dots = TRUE)
mf[[1]] <- as.name("ls")
as.call(mf)
}
but when I set
x.out<-setx(z.out)
I receive the following error message:
Error in model.frame(formula, rownames, variables, varnames, extras,
extranames, :
variable lengths differ
In addition: Warning message:
There is more than one mode. The first level is selected. in:
FUN(X[[1]], ...)
Any suggestion is appreciated
Luca
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