On 11/01/2013 01:59, Alphan Kirayoglu wrote:> Hi,
>
> Is there a function to calculate probabilities for new out-of-sample data
> once we fit a model using the in-sample data?
>
> predict(model, newdata=... ) seems to require the new data to be the same
> size as the original data used to fit the model.
It does not, so why do you assume so?
> In short, I would like to fit a model and then pass out-of-sample data to
> calculate probabilities.
That is what predict() is for.
Your subject line says 'polr model'. Perhaps this was about my package
MASS, but in any case please talk to the credit-where-credit-is-due
department.
And you could have seen this with a simple modification of the example
on the help page for MASS::polr ....
>
> Regards,
> Alp
>
> [[alternative HTML version deleted]]
>
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--
Brian D. Ripley, ripley at stats.ox.ac.uk
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