cell3d.corregp: 3D Confidence Ellipsoids for Correspondence Regression In corregp: Functions and Methods for Correspondence Regression

Description

Method to compute 3D confidence ellipsoids for coordinates in correspondence regression.

Usage

 ```1 2 3 4``` ```## S3 method for class 'corregp' cell3d(object, parm = "x", axes = 1:3, cl = 0.95, ...) cell3d(object, ...) ```

Arguments

 `object` The output of a call to `corregp` (i.e. an object of class "corregp"). `parm` The parameter for which to compute the confidence ellipsoids. Can be either `"y"`, `"x"`, or any vector of term names in X, level names in X or level names in Y. Defaults to `"x"`. `axes` The axes for which to compute the confidence ellipsoids: a vector of three values. Defaults to the first three axes. `cl` The confidence level for the confidence ellipsoids. Defaults to `0.95`. `...` Further arguments passed to or from other methods.

Details

`cell3d` (of a `corregp` output) makes use of `ellipse3d` from the package rgl.

Typically, `cell3d` is not so much used directly as it is called by a `plot3d.corregp` command.

Value

A list containing coordinate points for each confidence ellipsoid of interest.

`plot3d.corregp`.

Examples

 ```1 2 3 4``` ```data(HairEye) haireye.crg <- corregp(Eye ~ Hair * Sex, data = HairEye, b = 3000) cell3d(haireye.crg, parm = "y") cell3d(haireye.crg, parm = c("Hair", "Sex")) ```

corregp documentation built on March 18, 2018, 1:40 p.m.