rsdepth (version 0.1-22)

convexhull: Convex Hull of a pointset

Description

Convex Hull of a pointset in plane.

Usage

convexhull(x, y=NULL,...)

Arguments

x

The data as a matrix, data frame or list. If it is a matrix or data frame, then each row is viewed as one bivariate observation. If it is a list, all components must be numerical vectors of equal length (coordinates of observations).

y

The data as a matrix, data frame or list. If it is a matrix or data frame, then each row is viewed as one bivariate observation. If it is a list, all components must be numerical vectors of equal length (coordinates of observations).

...

For future use.

Value

Returns with respect to data set, ordered set of points on the convex hull.

Details

In dimension 2, calculates Convex Hull of a pointset.

References

N. Mustafa, S. Ray, and M. Shabbir, Statistical Data Depth of Pointsets in the Plane,in prep..

See Also

inflate

Examples

# NOT RUN {
## calculation of centroid of a random pointset
z = matrix(rnorm(24),nc=2)
x = convexhull(z)
# }