Thanks a lot Dr. Turner, I will read it.
Best wishes,
Alexandre
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Alexandre dos Santos
Proteção Florestal
IFMT - Instituto Federal de Educação, Ciência e Tecnologia de Mato Grosso
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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
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