[R] Linear Model Prediction

[R. Michael Weylandt <michael.weylandt@gmail.com>]

On Jul 24, 2012, at 1:38 PM, cm <bunnylover23 at optonline.net> wrote:

> How do I set it up? Because when I do predict(model) I get a ton of points, not just one. 

You need to supply newdata=  . predict() without new data gives predicted values for the predictors you for the model to. 

Incidentally, repeating Uwe -- are you sure you want x~y ?

Michael

> 
> ----- Original Message -----
> From: "Uwe Ligges-3 [via R]" 
> Date: Tuesday, July 24, 2012 2:28 pm
> Subject: Re: Linear Model Prediction
> To: cm 
> 
>> 
>> 
>> 
>> 
>> On 24.07.2012 20:20, cm wrote:
>>> I have data X and Y, and I want to predict what the very next 
>> point would be
>>> based off the model. This is what I have:
>>>> model=lm(x~y)
>> 
>> 
>> Hmmm, are you sure about the above code?
>> 
>>> I think I want to use the predict function, but I'm not 
>> exactly sure what to
>>> do.
>> 
>> Yes, use predict().
>> 
>> Is this homework?
>> 
>> 
>> Uwe Ligges
>> 
>> 
>>> 
>>> Thank you!
>>> 
>>> 
>>> 
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