Descriptive statistics and computation
========================================

Descriptive statistics
--------------------------

====================         ===========================================
:doc:`../aggregate`          Aggregates the data in the columns of a matrix based upon a column containing group ids with a choice of method.
:doc:`../dstatmt`            Computes descriptive statistics of a dataset, dataframe, or matrix.
:doc:`../frequency`          Generate frequency table.
:doc:`../jarquebera`         Computes the Jarque-Bera goodness-of-fit test
:doc:`../kurtosis`           Computes the sample kurtosis.
:doc:`../maxc`               Computes maximum value of each column of a matrix.
:doc:`../meanc`              Computes mean value of each column of a matrix.
:doc:`../median`             Computes medians of the columns of a matrix.
:doc:`../minc`               Computes minimum value of each column of a matrix.
:doc:`../modec`              Computes mode of each column of a matrix.
:doc:`../quantile`           Computes quantiles from each column in a matrix, given specified probabilities.
:doc:`../skew`               Computes the sample skew.
:doc:`../stdc`               Computes the sample standard deviation of the elements in each column of a matrix.
:doc:`../tabulate`           Computes and returns two-way tables of frequencies.
:doc:`../vcmvcx`             Computes an unbiased estimate of a variance-covariance matrix from a matrix :math:`x` or a moment matrix, :math:`x'x`.
====================         ===========================================


Computation
--------------------------

====================         ===========================================
:doc:`../cumprodc`           Computes the cumulative products of the columns of a matrix.
:doc:`../cumsumc`            Computes the cumulative sums of the columns of a matrix.
:doc:`../prodc`              Computes the products of all elements in each column of a matrix.
:doc:`../prodr`              Computes the products of all elements in each row of a matrix.
:doc:`../sumc`               Computes the sum of each column of a matrix or the sum across the second-fastest moving dimension of an L-dimensional array.
:doc:`../sumr`               Computes the sum of each row of a matrix or the sum of the fastest moving dimension of an L-dimensional array.
====================         ===========================================


==================         ===========================================
:doc:`../maxindc`          Returns a column vector containing the index (i.e., row number) of the maximum element in each column of a matrix.
:doc:`../minindc`          Returns a column vector containing the index (i.e., row number) of the smallest element in each column of a matrix.
==================         ===========================================