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    S-PLUS Functions for  Inference in Univariate Elliptical
       Regression Models (Version 2.0; February 2005)
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	      Copyright (C) 2005 Francisco José A. Cysneiros
	    The software is free and distributed under the
		     GNU General Public License.

The library contains the following functions. Use this by


anova.elliptical       Method for function `anova' for "elliptical" objects
elliptical             inference - generic function regression-elliptical model
family.elliptical      Method for function `family' for "elliptical" objects
residuals              Residuals in regression-elliptical model
Student(arg=k)         Student's t family generator function with k degree freedom
Normal()	       gaussian's t family generator function
Cauchy()	       cauchy's t family generator function
Gstudent(arg=c(s,r))   generalized Student's  family generator function with s and r parameter
LogisI()	       logistic I's  family generator function
LogisII()	       logistic II's  family generator function
Glogis(arg=c(alpha,m)) generalized logistic's  family generator function with alpha and m parameter
Powerexp(arg=k)	       power exponential's  family generator function with k parameter
print.family.elliptical     Print method for "family.elliptical" objects
print.elliptical            Print method for "ellitpcal" objects
print.summary.elliptical    Print method for "summary.elliptical" objects
summary.elliptical          Summary method for "elliptical" objects
diag.elliptical        evaluate diagnostic measures
elliptical.diag.plots  diagnostic's plots
envelope               quantil-quantil plot with simulated envolopes

As well as these functions the following functions and dataframes are 
included.  These functions are not intended to be used alone but are 
used by the above functions.

anova.ellipticallist           make.family.elliptical
elliptical.deriv               elliptical.fit                 


This library contains the following dataframe
stack and density in ellipticaldemo.s


Each of these data sets has an associated help file giving brief details
of the data and its source.


In addition there are help files for the new classes of objects used 
in this library: "family.elliptical.object", "elliptical.object".


This library uses some functions of the S-PLUS library "Matrix",
                  --------------------------------     --------
                   WHICH HAS TO BE LOADED FIRST !
                  -------------------------------- 

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Francisco José A. Cysneiros
Departamento de Estatística-CCEN
universidade Federal de Pernambuco
Cidade universitária Recife(PE)
Brazil

Tel : +55 81 2126 7422
Fax : +55 81 2126 8422
email : cysneiros@de.ufpe.br
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