xtdes.hlp

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{smcl}
{* 21mar2005}{...}
{cmd:help xtdes}{right:dialog:  {bf:{dialog xtdes}}}
{hline}

{title:Title}

{p2colset 5 19 21 2}{...}
{p2col :{hi:[XT] xtdes} {hline 2}}Describe pattern of xt data{p_end}
{p2colreset}{...}


{title:Syntax}

{p 8 14 2}
{cmd:xtdes} {ifin} [{cmd:,} {it:options}]

{synoptset 15 tabbed}{...}
{synopthdr}
{synoptline}
{syntab:Main}
{synopt :{opt p:atterns(#)}}maximum participation patterns; default is {cmd:patterns(9)}{p_end}
{synopt :{opth "i(varname:varname_i)"}}use {it:varname_i} as the panel ID variable{p_end}
{synopt :{opth "t(varname:varname_t)"}}use {it:varname_t} as the time variable{p_end}
{synopt :{opt w:idth(#)}}display {it:#} width of participation patterns; default is {cmd:width(100)}{p_end}
{synoptline}
{p2colreset}{...}

{phang}
{opt by} may be used with {cmd:xtdes}; see {helpb by}.


{title:Description}

{pstd}
{cmd:xtdes} describes the participation pattern of cross-sectional
time-series (xt) data.


{title:Options}

{phang}
{opt patterns(#)} specifies the maximum number of
participation patterns to be reported; {cmd:patterns(9)} is the default.
Specifying {cmd:patterns(50)} would list up to 50 patterns.  Specifying
{cmd:patterns(1000)} is taken to mean {cmd:patterns(}infinity{cmd:)}; all the
patterns will be listed.

{phang}
{opth "i(varname:varname_i)"} specifies the variable name corresponding to {it:i} in
{bf:x}_{it:it}; see {help xt}.

{phang}
{opth "t(varname:varname_t)"} specifies the variable name corresponding to
{it:t} in {bf:x}_{it:it}; see {help xt}.

{phang}
{opt width(#)} specifies the maximum width of
the participation patterns to be displayed; {cmd:width(100)} is the default.
The width of the display is determined by the range of the time variable and
the minimum time increment.  The minimum time increment is displayed in the
output as {cmd:Deltavarname} = {it:d}, where {it:d} is a real number.  If the
width of the display will exceed {opt width()} then {it:d} is computed
using the time range and {opt width()}.


{title:Example}

    {cmd:. iis id}
    {cmd:. tis year}
    {cmd:. xtdes}


{title:Also see}

{psee}
Manual:  {bf:[XT] xtdes}

{psee}
Online:  {help xt}, {helpb xtsum}, {helpb xttab}