plot.leverage.ppm

0th

Percentile

Plot Leverage Function

Plots a leverage function that has been computed by leverage.ppm.

Keywords
models, spatial
Usage
## S3 method for class 'leverage.ppm':
plot(x, ..., showcut=TRUE, col.cut=par("fg"))
Arguments
x
Leverage measure (object of class "leverage.ppm") computed by leverage.ppm.
...
Arguments passed to plot.im or contour.im controlling the plot.
showcut
Logical. If TRUE, a contour line is plotted at the level equal to the theoretical mean of the leverage.
col.cut
Optional colour for the contour line.
Details

This is the plot method for objects of class "leverage.ppm". These objects are computed by the command leverage.ppm.

Use the argument clipwin to restrict the plot to a subset of the full data.

Value

  • None.

References

Baddeley, A., Chang, Y.M. and Song, Y. (2013) Leverage and influence diagnostics for spatial point process models. Scandinavian Journal of Statistics 40, 86--104.

See Also

leverage.ppm

Aliases
  • plot.leverage.ppm
Examples
X <- rpoispp(function(x,y) { exp(3+3*x) })
   fit <- ppm(X, ~x+y)
   plot(leverage(fit))
Documentation reproduced from package spatstat, version 1.42-2, License: GPL (>= 2)

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