[R] Dealing with NAs

[Jeff Newmiller]

Read the posting guide. An example is not reproducible without sample data.

You may need to remove data records containing NA. It may not even be a true NA, depending how you got your data into R.
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Sent from my phone. Please excuse my brevity.

Ville Iiskola <ville.iiskola at uta.fi> wrote:

>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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>PLEASE do read the posting guide
>http://www.R-project.org/posting-guide.html
>and provide commented, minimal, self-contained, reproducible code.