polyg {fda} | R Documentation |

## Polygonal Basis Function Values

### Description

Evaluates a set of polygonal basis functions, or a derivative of these functions, at a set of arguments.

### Usage

polyg(x, argvals, nderiv=0)

### Arguments

`x ` |
A vector of argument values at which the polygonal basis functions are to evaluated. |

`argvals ` |
A strictly increasing set of argument values containing the range of x within it that defines the polygonal basis. The default is x itself. |

`nderiv ` |
The derivative to be evaluated. The derivative must not exceed one. The default derivative is 0, meaning that the basis functions themselves are evaluated. |

### Details

### Value

A matrix of function values. The number of rows equals the number of arguments, and the number of columns equals the number of basis

### Note

### Author(s)

### References

### See Also

### Examples

[Package

*fda* version 1.0

Index]