# Sample Data: Sporophores

Locations of sporophores (the spore-bearing structure of a fungus) around a tree, annotated with three fungi species marks

## Details

Locations of sporophores (the spore-bearing structure of a fungus) around a tree in a polygonal observation region bounded by the region Rectangle[{-145., -145.}, {145., 145.}] centimeters, annotated with three fungi species marks.

## Examples

### Basic Examples (1)

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Summary of the spatial point data:

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### Visualizations (2)

Plot the spatial point data:

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Plot the smooth point intensity:

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### Analysis (5)

Compute probability of finding a point within given radius of an existing point - NearestNeighborG is the CDF of the nearest neighbor distribution:

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NearestNeighborG as the CDF of nearest neighbor distribution can be used to compute the mean distance between a typical point and its nearest neighbor - the mean of a positive support distribution can be approximated via a Riemann sum of 1- CDF. To use Riemann approximation create the partition of the support interval from 0 to maxR into 100 parts and compute the value of the NearestNeighborG at the middle of each subinterval:

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Now compute the Riemann sum to find the mean distance between a typical point and its nearest neighbor:

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Account for scale and units:

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Test for complete spacial randomness:

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Gosia Konwerska, "Sample Data: Sporophores" from the Wolfram Data Repository (2022)