Important: The stats package has been deprecated. Use the superseding package Statistics instead.

The stats[statevalf] subpackage provides numerical evaluations of statistical functions.

Each command in the stats[statevalf] subpackage can be accessed by using either the long form or the short form of the command name in the command calling sequence.

The following is a list of available commands for continuous distributions.

The following is a list of available commands for discrete distributions.

The various distributions take their parameters as indices to the distributions. Refer to stats[distributions] for information on each available distribution.

If a particular call cannot be evaluated, for example trying to find the numerical value of a probability density function at a symbolic value, the call is returned unevaluated. Information is provided in the variable `stats/lasterror` as to the reason why a call was not evaluated. Also, this information is automatically given if infolevel[stats] has a value greater than or equal to one, prior to the unsuccessful call.

To display the help page for a particular stats[statevalf] command, see Getting Help with a Command in a Package.

$\mathrm{with}\left(\mathrm{stats}\right)\:$

$\mathrm{statevalf}\left[\mathrm{pdf},\mathrm{normald}\right]\left(4.0\right)$

$0.0001338302258$

$\mathrm{statevalf}\left[\mathrm{icdf},\mathrm{normald}\left[1,2\right]\right]\left(0.9\right)$

$3.563103131$

$\mathrm{statevalf}\left[\mathrm{cdf},\mathrm{normald}\right]\left(1.0\right)$

$0.8413447461$

$\mathrm{plots}\left[\mathrm{display}\right]\left(\left\{\mathrm{plot}\left(\mathrm{statevalf}\left[\mathrm{cdf},\mathrm{normald}\left[1,2\right]\right]\,-3..3\,\mathrm{colour}=\mathrm{yellow}\right)\,\mathrm{plot}\left(\mathrm{statevalf}\left[\mathrm{icdf},\mathrm{normald}\left[1,2\right]\right]\,0.1..0.9\,\mathrm{colour}=\mathrm{red}\right)\,\mathrm{plot}\left(\mathrm{statevalf}\left[\mathrm{pdf},\mathrm{normald}\left[1,2\right]\right]\,-3..3\,\mathrm{colour}=\mathrm{green}\right)\right\}\right)$