create.polygonal.basis {fda} | R Documentation |

## Create a Polygonal Basis

### Description

A basis is set up for constructing polygonal lines, consisting of straight line segments that join together.

### Usage

create.polygonal.basis(argvals=NULL)

### Arguments

`argvals ` |
A strictly increasing vector of argument values at which line segments join to form a polygonal line. |

### Details

The actual basis functions consist of triangles, each with its apex over an argument value. Note that in effect the polygonal basis is identical to a B-spline basis of order 2 and a knot or break value at each argument value. The range of the polygonal basis is set to the interval defined by the smallest and largest argument values.

### Value

A basis object with the type "polyg".

### Note

### Author(s)

### References

### See Also

basis.fd. create.basis, create.bspline.basis

### Examples

[Package

*fda* version 1.0

Index]