[R] Predictions with missing inputs

Uwe Ligges ligges at statistik.tu-dortmund.de
Sat Apr 27 20:12:32 CEST 2013



On 25.04.2013 18:12, tonitogomez wrote:
> Hi Bill,
> Very clear response.
> How about when the missing values are on the response variable being
> predicted (y)? That is, the model is fitted only to complete cases, but then
> I want to have predictions for all individual y (including those missing).
> Can I use the mean for that variable 'y'?
>
> EXAMPLE:
> mynewdata <- mydata
> mynewdata$y<-mean(mydata$y)
> mypred <- predict(mymodel, mynewdata)

Err, if y is your response, you do not need them for prediction...

Best,
Uwe Ligges


> Thanks,
> Manuel
>
>
>
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