saddle.distn.object {boot} | R Documentation |

## Saddlepoint Distribution Approximation Objects

### Description

Class of objects that result from calculating saddlepoint distribution
approximations by a call to `saddle.distn`

.

### Generation

This class of objects is returned from calls to the function
`saddle.distn`

.

### Methods

The class `"saddle.distn"`

has methods for the functions
`lines`

and `print`

.

### Structure

Objects of class `"saddle.distn"`

are implemented as a list with
the following components.

quantilesA matrix with 2 columns. The first column contains the
probabilities `alpha`

and the second column contains the
estimated quantiles of the distribution at those probabilities
derived from the spline.
pointsA matrix of evaluations of the saddlepoint approximation. The first
column contains the values of `t`

which were used, the second
and third contain the density and cdf approximations at those points
and the rest of the columns contain the solutions to the saddlepoint
equations. When `type`

is `"simp"`

, there is only one of
those. When `type`

is `"cond"`

there are `2*d-1`

where `d`

is the number of columns in `A`

or the output of
`A(t,...{})`

. The first `d`

of these correspond to the
numerator and the remainder correspond to the denominator.
distnAn object of class `smooth.spline`

. This corresponds to the
spline fitted to the saddlepoint cdf approximations in points in
order to approximate the entire distribution. For the structure of
the object see `smooth.spline`

.
callThe original call to `saddle.distn`

which generated the object.
LRA logical variable indicating whether the Lugananni-Rice
approximations were used.
### See Also

`lines.saddle.distn`

, `saddle.distn`

,
`print.saddle.distn`

[Package

*boot* version 1.2-27

Index]