bounding.box.xy

From spatstat v1.15-2 by Adrian Baddeley

Convex Hull of Points

Computes the smallest rectangle containing a set of points.

Keywords: utilities, spatial

Usage

bounding.box.xy(x, y=NULL)

Arguments

x: vector of x coordinates of observed points, or a 2-column matrix giving x,y coordinates, or a list with components x,y giving coordinates (such as a point pattern object of class "ppp".)
y: (optional) vector of y coordinates of observed points, if x is a vector.

Details

Given an observed pattern of points with coordinates given by x and y, this function finds the smallest rectangle, with sides parallel to the coordinate axes, that contains all the points, and returns it as a window.

Value

A window (an object of class "owin").

Examples

x <- runif(30)
  y <- runif(30)
  w <- bounding.box.xy(x,y)
  plot(owin(), main="bounding.box.xy(x,y)")
  plot(w, add=TRUE)
  points(x,y)

  X <- rpoispp(30)
  plot(X, main="bounding.box.xy(X)")
  plot(bounding.box.xy(X), add=TRUE)

Documentation reproduced from package spatstat, version 1.15-2, License: GPL (>= 2)

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