Re: [R] Rcmdr vs SPSS

From: Jeremy Miles <jeremy.miles_at_gmail.com>
Date: Wed, 20 Apr 2011 15:04:28 -0700

What's the mistake? They look like the same numbers to me. (Although I didn't check them all).

Oh, hang on, are you saying that they're different kinds of residuals, but they are the same? This is because SPSS names its residuals wrongly.

SPSS has standardized residuals, these are residuals divided by the standard deviation of the residuals, calculated as the overall SD.

SPSS has studentized residuals. Everyone else calls these standardized residuals.

SPSS has studentized deleted residuals, which follow a student's t-distribution. Everyone else calls the studentized residuals (because they follow the distribution). John Fox's regression book <http://socserv.mcmaster.ca/jfox/Books/Companion/> explains all of this nicely.

Jeremy

On 20 April 2011 14:36, Tamas Barjak <tamas.barjak02_at_gmail.com> wrote:
> Hy all!
>
> Excuse me for the inaccurate composition, but I do not speak well in
> English.
>
> I noticed a mistake in Rcmdr (?) -- Models menu --- Add observation
> statistics to data --- Studentized residuals.
> My output :
>
> (Rcmdr !!!)
>
> rstudent.RegModel.1 (= *Studentized residuals*)
>
> -1.5690952
> -0.0697492
> -0.6830684
> 1.0758056
> 0.2719739
> 0.3626101
> 0.8361803
> 1.0180479
> 0.8936783
> -0.4630021
> -3.2972946
>
> AND!!!
>
> SPSS (= *Studentized DELETED residuals*)
>
> -1,56910
> -0,06975
> -0,68307
> 1,07581
> 0,27197
> 0,36261
> 0,83618
> 1,01805
> 0,89368
> -0,46300
> -3,29729
>
> This wrong???
>
>        [[alternative HTML version deleted]]
>
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>

-- 
Jeremy Miles
Psychology Research Methods Wiki: www.researchmethodsinpsychology.com

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Received on Wed 20 Apr 2011 - 22:09:49 GMT

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