[R] Question re predict.glm & predict.lm in STATS

[Bert Gunter]

??
Show us the error. Show us the call.


On Tue, Feb 15, 2022, 12:14 PM STEPHEN KAISLER <skaisler1 using comcast.net>
wrote:

> Folks:
>
> I haved glm/lm to build a model on a training set derived from auto_mpg
> data of 274 records (70% sampling)
>
> The test data set has 118 records.
>
> I am trying to use predict.glm or predict.lm to predict the values of mpg
> from disp, hp,weight, accel, and cyl.
>
> However I get the following message:
>
>
> So, the resulting vector has 274 rows, when I believe it should have just
> 118 rows - the size of the test data set.
>
> I would appreciate it if someone could explain if am making the call
> in error.
>
> Steve Kaisler
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