Uses a modification of the published FORTRAN code in "A Computer Program for Generating Variance Dispersion Graphs" by G. Vining, Journal of Quality Technology, Vol. 25 No. 1 January 1993, to produce variance dispersion graphs. Also produces fraction of design space plots, and contains data frames for several minimal run response surface designs.

Variance dispersion graphs and Fraction of design space plots
for response surface designs

package-ubuntu-20.04-r-4.0.5#cran#Vdgraph-2.2-2

<p>This function calculates means of design. </p>

<table summary="R argblock"><tr valign="top">
<td><code>x</code></td>
<td>
<p> This is a design matrix</p>
</td>
</tr></table>

<table summary="R valueblock"><tr valign="top">
<td><code>mean </code></td>
<td>
<p> This is the mean of the design x </p>
</td>
</tr></table>

<p> This function is called by the function Vdgraph.</p>

<p> John S. Lawson <a href="mailto:lawson@byu.edu">lawson@byu.edu</a></p>

package-ubuntu-20.04-r-4.0.5#cran#Vdgraph-2.2-2#docs#f

f

Description

Usage

Arguments

Value

Note

Author(s)

Vdgraph

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