My dependent variable is antinatal care visit and it starts from zero to 20.But whenever I run the command Zeroinfl(zero inflated model) or Hurdle model there occurs an error indicating that the dependent variable is not valid ant the minimum count is not zero.
but when I summarize my dependent variable it shows its min value is zero! I cant get my mistakes! plz help me in this regard.
Dr. Senthilvel Vasudevan
Hi,
Kindly see the following link.
http://cran.r-project.org/web/packages/pscl/pscl.pdf
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Derek Price
Hi,
maybe it's a problem of type of variable, check that your dependent variable is not a factor:
> class(data$variable)
[1] "numeric"
it maybe useful if you paste the error message you get.
Cheers
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