predict.bs {splines} | R Documentation |

## Evaluate a Spline Basis

### Description

Evaluate a predefined spline basis at given values.

### Usage

## S3 method for class 'bs':
predict(object, newx, ...)

### Arguments

`object` |
the result of a call to `bs` or
`ns` having attributes describing `knots` ,
`degree` , etc. |

`newx` |
the `x` values at which evaluations are required. |

`...` |
Optional additional arguments. Presently no additional
arguments are used. |

### Value

An object just like `object`

, except evaluated at the new values
of `x`

.

These are methods for the generic function `predict`

for
objects inheriting from classes `"bs"`

or `"ns"`

. See
`predict`

for the general behavior of this function.

### See Also

`bs`

, `ns`

, `poly`

.

### Examples

basis <- ns(women$height, df = 5)
newX <- seq(58, 72, len = 51)
# evaluate the basis at the new data
predict(basis, newX)

[Package

*splines* version 2.1.0

Index]