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As of Version 7.0, NonlinearRegress has been superseded by NonlinearModelFit and is part of the built-in Mathematica kernel.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 ...
As of Version 6.0, NotationBoxTag has been superseded by "NotationTemplateTag" and by ParsedBoxWrapper.
As of Version 6.0, NotationMadeBoxesTag has been superseded by "NotationMadeBoxesTag" and by ParsedBoxWrapper.
As of Version 6.0, NotationPatternTag has been superseded by "NotationPatternTag".
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As of Version 7.0, PieEdgeStyle has been superseded by ChartStyle.