Statistical Analysis Stack Exchange
Statistical Analysis Stack Exchange

Questions tagged [spatstat]

9 questions
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1 answer

What is the "sensible default" for the Kest function of the spatstat package?

I'm reading the documentation on the Kest function (page 731) from the spatstat package. For the argument $r$, that is the "Vector of values for the argument $r$ at which $K(r)$ should be evaluated", it states that: Users are advised not to specify…
Gabriel
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Interpretation of cross K function (cross type ripley's k function) for spatial point pattern (package spatstat in R)

The main question of my study now is to know whether two rodent species were spatially segregated, aggregated, or just randomized distributed. I've read the textbook (Spatial Point Patterns: Methodology and Applications with R by Baddeley et al.)…
MittyAdai
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Classes for Kriging and gridded data set. Found issue creating (meuse.grid)

i am working on my data set , i want to analyze it according to http://statweb.lsu.edu/faculty/li/IIT/spatial.html. Unfortunately, i am unable to understand meuse.grid i read out several documents but did not find how they build this gridded data…
rizwan niaz
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Do I correctly apply hierarchical clustering and K-means on the resource-selection-function values?

I'm trying to find the best way to classify bivariate point patterns in spatstat according to the relationship between two point species: Point pattern classification with spatstat: what am I doing wrong? Point pattern classification with spatstat:…
Sergej S
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Point pattern classification with spatstat: how to choose the right bandwidth for the kernel density?

I'm trying to find the best way to classify bivariate point patterns in spatstat according to the relationship between two point species: Point pattern classification with spatstat: what am I doing wrong? Point pattern classification with spatstat:…
Sergej S
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Point pattern classification with spatstat: ist this a valid way?

I’am trying to classify bivariate point patterns into groups using spatstat. The patterns are derived from the whole slide images of lymph nodes with cancer. I’ve trained a neural network to recognize cells of three types (cancer “LP”, immune cells…
Sergej S
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Extracting the fitted expected number of points from mppm in spatstat (in R)

When fitting a Poisson process model on multiple point patters using the spatstat R package (mppm function), is there a computationally efficient way to extract the fitted expected number of points from the mppm fit? I expand with a toy example…
GPa
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spatstat::plot.envelope observed line longer than significance band

Using the R package spatstat I'm plotting pooled pointwise envelopes of the function Jfox calculated for different point pattern in an hyperframe. The workflow is as follow: # define distances to make envelopes comparables ers<-seq(from=0,to=3,…
Filippo
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spatstat::plot.envelope observed line longer than shading

Using the R package spatstat I'm plotting pooled pointwise envelopes of the function Jfox calculated for different point pattern in an hyperframe. The workflow is as follow: # define distances to make envelopes comparables ers<-seq(from=0,to=3,…
Filippo
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