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Re: st: CI and PI on the same graph


From   Nick Cox <njcoxstata@gmail.com>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   Re: st: CI and PI on the same graph
Date   Wed, 9 Oct 2013 23:47:03 +0100

See also -aaplot- from SSC, especially its examples.
Nick
njcoxstata@gmail.com


On 9 October 2013 23:17, Alan Neustadtl <alan.neustadtl@gmail.com> wrote:
> Burak,
>
> Here is an example that I think is what you want:
>
> sysuse auto, clear
> regress mpg weight
> #delimit ;
>   graph twoway (lfitci mpg weight, stdf)
>   (lfitci mpg weight, stdp acolor(maroon))
>   (scatter mpg weight);
> #delimit cr
>
> Note that the order of the graphs matters since Stata in essence
> layers the graphs and there fore 2nd and 3rd graphs can occlude the
> first graph.  So, I graphed the widest interval first, followed by the
> next widest interval (which shows on top), followed by the plot of the
> individual points.
>
> I also changed the color of the second area plot so it would stand out
> from the first plot.
>
> Hopefully this helps you.
>
> Best,
> Alan
>
>
> On Wed, Oct 9, 2013 at 5:34 PM, Burak <infinisafricae@hotmail.com> wrote:
>> Hello,
>>
>> Is there a way to show the confidence bands associated with the prediction
>> of conditional mean (conf. interval) and the prediction of the individual
>> observation (prediction interval) on the same graph? Both stdf and stdf
>> associated with lfitci are unique options.
>>
>> Regards
>>
>> Burak
>>
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