Hi
Without knowing details about mlogit and without any data from your side
to check I guess that you shall put
na.omit or na.exclude instead of na.pass to na.action
Regards
Petr
> "Ville Iiskola" <ville.iisk...@uta.fi>
> Odeslal: r-help-boun...@r-project.org
>
> 18.12.2011 15:06
>
> Komu
>
> <r-help@r-project.org>
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> [R] Dealing with NAs
>
> Hi
>
> I am trying to estimate parameter values with mlogit. I attach a part of
my data.
>
> My code is
>
>
x=mlogit.data(y,choice="voittaja",shape="long",id.var="id",alt.var="numero")
>
> summary(mlogit(voittaja ~ Ie-1 , data=x, na.action=na.pass))
>
>
>
> But i get
>
>
>
> Error in if (abs(x - oldx) < ftol) { :
> missing value where TRUE/FALSE needed
>
>
> Because there is Na in D2.
>
> What should i do to make it work?
>
>
>
>
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