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PoissonPointProcess—Wolfram Language Documentation

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• See Also
  • PointCountDistribution
  • InhomogeneousPoissonPointProcess
  • BinomialPointProcess
  • NeymanScottPointProcess
  • GibbsPointProcess
  • SpatialPointData
  • PoissonProcess
  • PoissonDistribution
  • InhomogeneousPoissonProcess
• Related Guides
  • Spatial Point Processes
  • Spatial Statistics
  • Probability & Statistics
  • Spatial Point Collections

PoissonPointProcess[μ,d]

represents a homogeneous Poisson point process with constant intensity μ in .

Sample from a Poisson point process:

Sample a Poison point process with several realizations:

Simulate Poisson point process over a country:

Suppose flaws in plywood occur on an average of one flaw per 50 square feet. Simulate the process of finding flaws on a per-square-foot basis:

Find the probability that a 4-foot×8-foot sheet will have no flaws:

For a round mirror with area 7.54 cm, the probability of no flaws is 0.91. Using the same polishing process, another round mirror with an area of 19.50 cm is fabricated. Assuming the flaws are independent and randomly located, find the probability of no flaws on the larger mirror:

Find the intensity of the flaw point process:

The resulting mirror polishing defect process is then:

The probability of no errors in the larger mirror:

An LCD display has 1920×1080 pixels. A display is accepted if it has 15 or fewer faulty pixels. The probability that a pixel is faulty from production is and the faulty pixel positions are independent and random. Find the proportion of displays that are accepted:

Simulate the faulty pixel configuration:

Find the probability of no more than 15 faulty pixels in the display:

Find the pixel failure rate required to produce 4000×2000 pixel displays and still have an acceptance rate of at least 90%:

Plot the acceptance rate as a function of the pixel failure rate:

Find the maximal acceptable pixel failure rate:

Check the result:

The number of points in a PoissonPointProcess is Poisson distributed:

Simulate a PoissonPointProcess over a unit disk:

Distribution of point counts:

Compare the histogram of point counts with the PDF:

Fit a PoissonDistribution to the point counts:

Test goodness of fit:

Test against the underlying distribution:

Compute void probabilities for a Poisson point process. For a disk:

For a rectangle:

For a unit ball:

The probability of finding a point within distance of an arbitrary location:

This equivalent to the CDF of RayleighDistribution:

Equivalently compute SurvivalFunction at 0 of PointCountDistribution:

Poisson point process is stationary—the intensity is translation invariant:

Point count distribution in a subregion:

Point count distribution in the translated subregion:

Poisson point process is isotropic—the intensity is rotation around origin invariant:

Point count distribution in a subregion:

Point count distribution in the translated subregion:

PoissonPointProcess has the property of complete spatial randomness:

Define left and right half-disks:

Create subset of points in each subregion:

Extract the number of points for each subregion:

Test whether two samples are independent:

Ripley's function for the Poisson point process has closed form and does not depend on the intensity:

Plot the function for few dimensions:

Besag's for the Poisson point process does not depend on intensity or dimensionality:

PairCorrelationG for the Poisson point process is constant:

EmptySpaceF and NearestNeighborG functions of a Poisson point process are identical:

They both are equivalent to the CDF of an ExponentialDistribution:

InhomogeneousPoissonPointProcess with a constant intensity function is PoissonPointProcess:

The point count distribution in a disk:

Point count distribution for a corresponding Poisson point process in the same region:

In higher dimension:

The point count distribution in a ball:

Point count distribution for a corresponding Poisson point process in the same region:

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