# Basic Statistics

## FREQUENCY TABULATIONS

ROUTINE DESCRIPTION
OWFRQ Tallies observations into a one-way frequency table.
TWFRQ Tallies observations into a two-way frequency table.
FREQ Tallies multivariate observations into a multiway frequency table.

## UNIVARIATE SUMMARY STATISTICS

ROUTINE DESCRIPTION
UVSTA Computes basic univariate statistics.

## RANKS AND ORDER STATISTICS

ROUTINE DESCRIPTION
RANKS Computes the ranks, normal scores, or exponential scores for a vector of observations.
LETTR Produces a letter value summary.
ORDST Determines order statistics.
EQTIL Computes empirical quantiles.
TWOMV Computes statistics for mean and variance inferences using samples from two normal populations.
BINES Estimates the parameter p of the binomial distribution.
POIES Estimates the parameter of the Poisson distribution.
NRCES Computes maximum likelihood estimates of the mean and variance from grouped and/or censored normal data.

## GROUPED DATA

ROUTINE DESCRIPTION
GRPES Computes basic statistics from grouped data.

## CONTINOUS DATA IN A TABLE

ROUTINE DESCRIPTION
CSTAT Computes cell frequencies, cell means, and cell sums of squares for multivariate data.
MEDPL Computes a median polish of a two-way table.