mark.H0

A utility function to draw and label a point in a 2D (or 3D) HE plot
corresponding to a point null hypothesis being tested. This is most useful
for repeated measure designs where null hypotheses for within-S effects
often correspond to (0,0).

aplot

Provides HE plot and other functions for visualizing hypothesis
tests in multivariate linear models. HE plots represent sums-of-squares-and-products
matrices for linear hypotheses and for error using ellipses (in two
dimensions) and ellipsoids (in three dimensions). The related 'candisc' package
provides visualizations in a reduced-rank canonical discriminant space when
there are more than a few response variables.

Michael Friendly

heplots

Visualizing Hypothesis Tests in Multivariate Linear Models

John Fox

Georges Monette

Phil Chalmers

Duncan Murdoch

mark.H0 function

<dl><dt>x</dt>
<dd>Horizontal coordinate for H0</dd>
<dt>y</dt>
<dd>Vertical coordinate for H0</dd>
<dt>z</dt>
<dd>z coordinate for H0. If not NULL, the function assumes that a
<code>heplot3d</code> plot has been drawn.</dd>
<dt>label</dt>
<dd>Text used to label the point. Defaults to
<code>expression(H[0])</code> in 2D plots.</dd>
<dt>cex</dt>
<dd>Point and text size. For 3D plots, the function uses
<code>size=5*cex</code> in a call to <code>points3d</code>.</dd>
<dt>pch</dt>
<dd>Plot character. Ignored for 3D plots.</dd>
<dt>col</dt>
<dd>Color for text, character and lines</dd>
<dt>lty</dt>
<dd>Line type for vertical and horizontal reference lines. Not drawn if <code>lty</code>=0.</dd>
<dt>pos</dt>
<dd>Position of text. Ignored for 3D plots</dd></dl>

Arguments

Author

Mark a point null hypothesis in an HE plot — mark.H0

<dl>

<dt>x</dt>
<dd>Horizontal coordinate for H0</dd>


<dt>y</dt>
<dd>Vertical coordinate for H0</dd>


<dt>z</dt>
<dd>z coordinate for H0. If not NULL, the function assumes that a
<code>heplot3d</code> plot has been drawn.</dd>


<dt>label</dt>
<dd>Text used to label the point. Defaults to
<code>expression(H[0])</code> in 2D plots.</dd>


<dt>cex</dt>
<dd>Point and text size. For 3D plots, the function uses
<code>size=5*cex</code> in a call to <code>points3d</code>.</dd>


<dt>pch</dt>
<dd>Plot character. Ignored for 3D plots.</dd>


<dt>col</dt>
<dd>Color for text, character and lines</dd>


<dt>lty</dt>
<dd>Line type for vertical and horizontal reference lines. Not drawn if <code>lty</code>=0.</dd>


<dt>pos</dt>
<dd>Position of text. Ignored for 3D plots</dd>

</dl>

mark.H0: Mark a point null hypothesis in an HE plot

Description

Usage

Value

Arguments

Author

See Also

Examples