[R-sig-Geo] [FORGED] Estimate of the intensity of a point process, as a function of a marked point process as covariate.

[ASANTOS]

Thanks a lot Dr. Turner, I will read it.

Best wishes,

Alexandre

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Em 31/03/2018 19:06, Rolf Turner escreveu:
>
> On 01/04/18 09:36, ASANTOS via R-sig-Geo wrote:
>
>> Dear R Sig Geo Members,
>>
>>      I've like to know if there are any function in any package for 
>> estimation density in a marked point process (e.g. geographic 
>> position and size of ants nests in square meters). My goal will be 
>> represents the density of ants nest estimated, but use nests sizes as 
>> covariate, this is possible?
>
> The Smooth.ppp() function in the spatstat package might be what you 
> are looking for.
>
> Using nest sizes as a *covariate* does not make sense to me.  A 
> covariate should be defined at all points of the observation window, 
> not just at the points of the observed pattern.
>
> See
>
>   Adrian Baddeley, Ege Rubak, Rolf Turner (2015). Spatial Point
>   Patterns: Methodology and Applications with R. London: Chapman and
>   Hall/CRC Press, 2015. URL
>
> http://www.crcpress.com/Spatial-Point-Patterns-Methodology-and-Applications-with-R/Baddeley-Rubak-Turner/9781482210200/ 
>
>
> particularly section 5.6.4, pages 147, 148.
>
> cheers,
>
> Rolf Turner
>