R: Count Number of Vertices

nvertices {spatstat.geom} | R Documentation

## Count Number of Vertices

### Description

Count the number of vertices in an object for which vertices are well-defined.

### Usage

      nvertices(x, ...)

      ## S3 method for class 'owin'
    nvertices(x, ...)

      ## Default S3 method:
    nvertices(x, ...)

### Arguments

`x` | A window (object of class `"owin"`), or some other object which has vertices.
`...` | Currently ignored.

### Details

This function counts the number of vertices of `x` as they would be returned by `vertices(x)`. It is more efficient than executing `npoints(vertices(x))`.

### Value

A single integer.

### Author(s)

Adrian Baddeley Adrian.Baddeley@curtin.edu.au, Rolf Turner r.turner@auckland.ac.nz and Ege Rubak rubak@math.aau.dk and Suman Rakshit.

### See Also

`vertices`

### Examples

      nvertices(square(2))
      nvertices(letterR)

[Package spatstat.geom version 2.3-2 Index]