As of Version 8, PrincipalComponents is part of the built-in Mathematica kernel.
As of Version 7.0, NonlinearRegress has been superseded by NonlinearModelFit and is part of the built-in Mathematica kernel.
The built-in function FindFit allows you to perform nonlinear least squares fitting. The function NonlinearRegress gives a number of regression diagnostics and allows you to ...
PieChart
(Obsolete Pie Charts Package Symbol) As of Version 7.0, PieChart is part of the built-in Mathematica kernel.
As of Version 7.0, PieEdgeStyle has been superseded by ChartStyle.
As of Version 7.0, PieExploded has been superseded by SectorSpacing.
As of Version 7.0, PieOrientation has been superseded by SectorOrigin.
As of Version 7.0, AdjustedRSquared has become a property of LinearModelFit.
As of Version 7.0, BestFitParameterDelta has been renamed to "BetaDifferences" and has become a property of LinearModelFit.