NumericalMath`TrigFit` was available as an add-on package in previous versions of Mathematica and is now available on the web at ...
The functionality of FilterOptions is provided by the kernel function FilterRules.
Utilities`MemoryConserve` was available as an add-on package in previous versions of Mathematica and is now available on the web at ...
Utilities`ShowTime` was available as an add-on package in previous versions of Mathematica and is now available on the web at library.wolfram.com/infocenter/MathSource/6792.
ClusterFlatten[c] gives a flat list of the data elements contained in the cluster c.
ClusterSplit[c, n] splits the cluster c into n clusters.
TruncateDendrogram is an option for DendrogramPlot that specifies the fusion levels at which to truncate the dendrogram.
ChiSquarePValue[x, df] gives the cumulative probability beyond x for the \[Chi]^2 distribution with df degrees of freedom.
EqualVariances is an option to statistical confidence interval and hypothesis test functions of two samples that specifies that unknown population variances are equal.