# Determine the Order of a Spline

### Description

Return the order of a spline object.

### Usage

1 | ```
splineOrder(object)
``` |

### Arguments

`object` |
An object that inherits from class |

### Details

The order of a spline is the number of coefficients in each piece of the piecewise polynomial representation. Thus a cubic spline has order 4.

### Value

A positive integer.

### Author(s)

Douglas Bates and Bill Venables

### See Also

`splineKnots`

,
`interpSpline`

,
`periodicSpline`

### Examples

1 | ```
splineOrder( interpSpline( weight ~ height, women ) )
``` |