Re: Distribution of CWRESI as a diagnostic
Dear Rik,
Is the mean of the distribution deviating significantly from 0 and/or does
the shape of the distribution deviate much from a normal distribution?
Ps. I do not regularly assess if my CWRES distributions have a SD=1 so I
can’t say if I regularly see a similar behavior.
Kind regards,
Martin
Quoted reply history
On Tue, 15 Nov 2022 at 16:07, Rik Schoemaker <[email protected]>
wrote:
> Dear all,
>
>
>
> I have routinely generated a histogram of CWRESI residuals as a model
> diagnostic, expecting the standard deviation to be close to one, and then
> commenting 'the SD is close to one as would be expected in a well behaved
> model'. However, I have now run into a situation where the SD is 0.887
> which I consider a lot lower than I'd expect, but I have no clue what that
> tells me...
>
> Any ideas? Should I stop making the plot? ;)
>
>
>
> Kind regards,
>
>
>
> Rik
>
>
>
>
>
> *Rik Schoemaker, PhD*
>
> *Occams *Coöperatie U.A.
> Malandolaan 10
> https://www.google.com/maps/search/Malandolaan+10+%0D%0A1187+HE+Amstelveen+%0D%0AThe+Netherlands?entry=gmail&source=g
> 1187 HE Amstelveen
> https://www.google.com/maps/search/Malandolaan+10+%0D%0A1187+HE+Amstelveen+%0D%0AThe+Netherlands?entry=gmail&source=g
> The Netherlands
> https://www.google.com/maps/search/Malandolaan+10+%0D%0A1187+HE+Amstelveen+%0D%0AThe+Netherlands?entry=gmail&source=g
>
> www.occams.com
>
> +31 20 441 6410
> [email protected]
>
>
>
> [image: image001.png]
>
>
>
>
>
>
>
>
>
--
Martin Bergstrand, Ph.D.
Principal Consultant
Pharmetheus AB
+46(0)709 994 396
[email protected]
www.pharmetheus.com
+46(0)18 513 328
U-A Science Park, Dag Hammarskjölds v. 36b
752 37 Uppsala, Sweden
--
*This communication is confidential and is only intended for the use of the
individual or entity to which it is directed. It may contain information
that is privileged and exempt from disclosure under applicable law. If you
are not the intended recipient please notify us immediately. Please do not
copy it or disclose its contents to any other person.*
*Any personal data
will be processed in accordance with Pharmetheus' privacy notice, available
here https://pharmetheus.com/privacy-policy/.**
*