Title

    [XT] xttab -- Tabulate xt data


Syntax

        xttab varname [if]

        xttrans varname [if] [, freq]

    A panel variable must be specified; use xtset.
    by is allowed with xttab and xttrans; see [D] by.


Menu

    xttab

        Statistics > Longitudinal/panel data > Setup and utilities > Tabulate xt data

     xttrans

        Statistics > Longitudinal/panel data > Setup and utilities > Report transition probabilities


Description

    xttab, a generalization of tabulate oneway, performs one-way tabulations and decomposes counts into between and
    within components in panel data.

    xttrans, another generalization of tabulate oneway, reports transition probabilities (the change in one
    categorical variable over time).


Option

        +------+
    ----+ Main +-----------------------------------------------------------------------------------------------------

    freq, allowed with xttrans only, specifies that frequencies as well as transition probabilities be displayed.


Examples

    Setup
        . webuse nlswork
        . xtset id year

    xttab
        . xttab msp
        . xttab race

    xttrans
        . xttrans msp
        . xttrans msp, freq