npfun

0th

Percentile

Dummy Function Returns Number of Points

Returns a summary function which is constant with value equal to the number of points in the point pattern.

Keywords
spatial, nonparametric
Usage
npfun(X, ..., r)
Arguments
X

Point pattern.

Ignored.

r

Vector of values of the distance argument \(r\).

Details

This function is normally not called by the user. Instead it is passed as an argument to the function psst.

Value

Object of class "fv" representing a constant function.

See Also

psst

Aliases
  • npfun
Examples
# NOT RUN {
  fit0 <- ppm(cells, ~1, nd=10)
  v <- psst(fit0, npfun)
# }
Documentation reproduced from package spatstat, version 1.55-1, License: GPL (>= 2)

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