[R] Error using betareg

[oyvfos]

Dear all,

I get an error using betrag on this data set
:http://dl.dropbox.com/u/1866110/dump.csv.
I run it like this
regression f2.1=betareg(Y~X1+X2,data=dump)
summary(f2.1)

I get :

Call:
betareg(formula = Y ~ X1 + X2, data = dump)

Standardized weighted residuals 2:
Error in quantile.default(x$residuals) : 
  missing values and NaN's not allowed if 'na.rm' is FALSE
In addition: Warning message:
In sqrt(v * (1 - hatvalues(object))) : NaNs produced

Does anybody know how to fix this?

Oyvind



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