orthopoly

This function is called from the function
<code>omca</code>. 
It allows the analyst to compute the orthogonal polynomials of each ordered categorical variable. 
The number of the polynomials is equal to the variable category less one.
The function computes the polynomial transformation of the ordered categorical variable.

nonparametric

Provides two variants of multiple correspondence analysis (ca):
multiple ca and ordered multiple ca via orthogonal polynomials of Emerson.

Rosaria Lombardo

MCAvariants

Multiple Correspondence Analysis Variants

orthopoly function

<dl> <dt>scores</dt>
<dd>The ordered scores of an ordered variable. By default <code>mj=NULL</code>, the natural scores (1,2,...) are computed.</dd> <dt>marginals</dt>
<dd>The marginals, relative frequencies of the ordered variable.</dd></dl>

Arguments

Author

Orthogonal polynomials — orthopoly

<dl>

 <dt>scores</dt>
<dd>The ordered scores of an ordered variable. By default <code>mj=NULL</code>, the natural scores (1,2,...) are computed.</dd>

 <dt>marginals</dt>
<dd>The marginals, relative frequencies of the ordered variable.</dd>

</dl>

orthopoly: Orthogonal polynomials

Description

Usage

Value

Arguments

Author

References

Examples