Questions tagged [spatstat]
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Limit of Ripley's K function as r goes to infinity?
Considering the Ripley's K function as used in spatial point-process analysis, or the closely related L function, I am wondering what the limit of the function is as r approaches infinity. I am aware ...
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Confirming the validity of a point process model
I have a question regarding a point process model I generated for a biological point pattern exhibiting repulsion and attraction at different scales. My goal for this model was to generate simulated ...
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Image Blur - Disc Kernel [closed]
I'm trying to use the blur() function from the spatstat package in R to blur an image. One ...
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Why is my L-cross type function not showing me the correct results?
Hi I'm trying to spatially analyse two point patterns in relation to each other: macrophage cells and tumour cells. The images I have generated coordinates from shows that the macrophages group ...
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Simulation envelopes for Foxall J not containing the line y=1 (fully reproducible example)
During some exploratory analysis of my data I noticed that when Jfox was calculated for a point pattern relative to some polygons, I frequently obtained that the pooled envelopes area did not include ...
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pointwise envelopes not including Theoretical line Foxall J
I am computing pointwise envelopes for the Foxall's J function to investigate the whether some point patterns of interest are clustered, avoid or are independent from other point patterns or polygons.
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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 ...
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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 ...
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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 ...
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spatstat::plot.envelope observed line longer than significance band [duplicate]
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 ...
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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 ...
- 349
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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 $...
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