Mathematica 7 delivers the latest fruits of Wolfram Research's major long-term Computable Data Initiative, providing immediate access to curated static and dynamic data in ...

When you define a complicated function, you will often want to let some of the arguments of the function be "optional". If you do not give those arguments explicitly, you ...

LocationEquivalenceTest[{data_1, data_2, ...}] tests whether the means or medians of the data_i are equal. LocationEquivalenceTest[{data_1, ...}, " property"] returns the ...

Building on the concept of symbolic data description, Mathematica 6.0 introduced the major new "elements" framework for handling import and export of data, in nearly a ...

Building on Mathematica's unified symbolic architecture, Mathematica 7 introduces several major new integrated forms of data manipulation—including large-scale support for ...

ChiSquarePValue[x, df] gives the cumulative probability beyond x for the \[Chi]^2 distribution with df degrees of freedom.

Masking is an option for various image analysis and processing functions that specifies on which regions they should operate.

TTest[data] tests whether the mean of data is zero. TTest[{data_1, data_2}] tests whether the means of data_1 and data_2 are equal.TTest[dspec, \[Mu]_0] tests the mean ...

$System is a string describing the type of computer system on which Mathematica is being run.