Re: [R-sig-eco] Spatial autocorrelation in Maxent models

[Bede-Fazekas Ákos]

Hi Diego,

No. I mean that you should calculate Moran's I on the residuals (i.e. 
observations minus the predictions to the observation locations).

Have a nice week,
Ákos

2021.02.02. 4:02 keltezéssel, Diego Guevara írta:
> Hi Ákos
>
> Thank you for your response. Do you mean that I should calculate Moran 
> on the observations' predictions?
>
> Cheers
> Diego
>
> On Sat, Jan 16, 2021, 7:24 PM Bede-Fazekas Ákos  > wrote:
>
> Dear Diego,
>
> Yes, you calculated the spatial autocorrelation of the predicted
> values
> in this way, which is not too informative and intresting.
> Autocorrelation of the residuals is what you need.
> If you subtract the predictions from the observations (using the
> simple
> raster algebra or raster::calc()), you can calculate Moran's I (or
> any
> other spatial autocorrelation measure) of the residuals.
>
> HTH,
> Ákos Bede-Fazekas
>
> 2021.01.15. 12:21 keltezéssel, Diego Guevara írta:
> > Hello everyone
> >
> > I am trying to find a way to test for spatial autocorrelation in
> Maxent
> > models. From my understanding, this should be tested on the
> residuals of
> > the model. So far I have only been able to test for Moran I test
> on the
> > prediction resulting raster using the package ELSA. However, I
> think I am
> > just testing Moran on the prediction values this way. Would that
> be enough
> > or ok? I will appreciate if someone can give me some insight.
> >
> > Best wishes
> > Diego
> >
> >       [[alternative HTML version deleted]]
> >
> > ___
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> > R-sig-ecology@r-project.org 
> > https://stat.ethz.ch/mailman/listinfo/r-sig-ecology
> 
>
> ___
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> 
>


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Re: [R-sig-eco] Spatial autocorrelation in Maxent models

[Diego Guevara]

Hi Ákos

Thank you for your response. Do you mean that I should calculate Moran on
the observations' predictions?

Cheers
Diego

On Sat, Jan 16, 2021, 7:24 PM Bede-Fazekas Ákos 
wrote:

> Dear Diego,
>
> Yes, you calculated the spatial autocorrelation of the predicted values
> in this way, which is not too informative and intresting.
> Autocorrelation of the residuals is what you need.
> If you subtract the predictions from the observations (using the simple
> raster algebra or raster::calc()), you can calculate Moran's I (or any
> other spatial autocorrelation measure) of the residuals.
>
> HTH,
> Ákos Bede-Fazekas
>
> 2021.01.15. 12:21 keltezéssel, Diego Guevara írta:
> > Hello everyone
> >
> > I am trying to find a way to test for spatial autocorrelation in Maxent
> > models. From my understanding, this should be tested on the residuals of
> > the model. So far I have only been able to test for Moran I test on the
> > prediction resulting raster using the package ELSA. However, I think I am
> > just testing Moran on the prediction values this way. Would that be
> enough
> > or ok? I will appreciate if someone can give me some insight.
> >
> > Best wishes
> > Diego
> >
> >   [[alternative HTML version deleted]]
> >
> > ___
> > R-sig-ecology mailing list
> > R-sig-ecology@r-project.org
> > https://stat.ethz.ch/mailman/listinfo/r-sig-ecology
>
> ___
> R-sig-ecology mailing list
> R-sig-ecology@r-project.org
> https://stat.ethz.ch/mailman/listinfo/r-sig-ecology
>

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