As of Version 7.0, HistogramCategories has been superseded by an optional argument hspec for the built-in Mathematica function Histogram.
As of Version 7.0, HistogramRange has been superseded by PlotRange.
As of Version 7.0, HistogramScale has been superseded by an optional argument hspec for the built-in Mathematica function Histogram.
As of Version 7.0, ConfidenceLevel is part of the built-in Mathematica kernel. >>
BasisNames
(Obsolete Linear Regression Package Symbol) As of Version 7.0, BasisNames has become an optional argument for LinearModelFit.
As of Version 7.0, DesignedRegress has been superseded by LinearModelFit.
As of Version 7.0, DesignMatrix is part of the built-in Mathematica kernel.
As of Version 7.0, IncludeConstant has been renamed to IncludeConstantBasis and is part of the built-in Mathematica kernel.
Regress
(Obsolete Linear Regression Package Symbol) As of Version 7.0, Regress has been superseded by LinearModelFit.
As of Version 8, HotellingTSquareDistribution is part of the built-in Mathematica kernel.