vecstable.hlp

是一个经济学管理应用软件 很难找的 但是经济学学生又必须用到

{smcl}
{* 17feb2005}{...}
{cmd:help vecstable}{right:dialog:  {bf:{dialog vecstable}}}
{hline}

{title:Title}

{p2colset 5 23 25 2}{...}
{p2col :{hi:[TS] vecstable} {hline 2}}Check the stability condition of VECM estimates{p_end}
{p2colreset}{...}


{title:Syntax}

{p 8 21 2}
{cmd:vecstable} [{cmd:,} {it:options}]

{synoptset 25 tabbed}{...}
{synopthdr}
{synoptline}
{syntab:Main}
{synopt :{opt est:imates(estname)}}use previously saved results {it:estname};
  default is to use active results{p_end}
{synopt :{opt a:mat(matrix_name)}}save the companion matrix as
  {it:matrix_name}{p_end}
{synopt :{opt gra:ph}}graph eigenvalues of the companion matrix{p_end}
{synopt :{opt d:label}}label eigenvalues with the distance from the unit
  circle{p_end}
{synopt :{opt mod:label}}label eigenvalues with the modulus{p_end}
{synopt :{opth rlopts(cline_options)}}affect rendition of reference unit
  circle{p_end}
{synopt :{opt nogri:d}}suppress polar grid circles{p_end}
{synopt :{opt pgrid}{cmd:(}[...]{cmd:)}[...]}specify radii and appearance of
  polar grid circles; see {it:{help vecstable##pgrid:Options}} for details
  {p_end}

{syntab:Add plot}
{synopt :{opth "addplot(addplot_option:plot)"}}add other plots to the generated graph{p_end}

{syntab:Y-Axis, X-Axis, Title, Caption, Legend, Overall}
{synopt :{it:{help twoway_options}}}any options other than {cmd:by()} documented in {bind:{bf:[G]} {it:twoway_options}}{p_end}
{synoptline}
{p2colreset}{...}
{p 4 6 2}{cmd:vecstable} can be used only after {helpb vec}.{p_end}


{title:Description}

{pstd}
{cmd:vecstable} checks the eigenvalue stability condition in a vector
error-correction model (VECM) fitted using {cmd:vec}.


{title:Options}

{dlgtab:Main}

{phang}
{opt estimates(estname)} requests that {cmd:vecstable} use the previously
obtained set of {help vec} estimates saved as {it:estname}.  By default, 
{cmd:vecstable} uses the active results.  See {helpb estimates} for information
about saving and restoring estimation results.

{phang}
{opt amat(matrix_name)} specifies a valid Stata matrix name by which the
companion matrix can be saved.  The companion matrix is referred to as the
{bf:A} matrix in L{c u:}utkepohl and {helpb varstable}.  The default
is not to save the companion matrix.

{phang}
{opt graph} causes {cmd:vecstable} to draw a graph of the eigenvalues of the
companion matrix.

{phang}
{opt dlabel} labels the eigenvalues with their distances from the unit
circle.  {opt dlabel} can only be specified with {opt graph} and cannot be
specified with {opt modlabel}.

{phang}
{opt modlabel} labels the eigenvalues with their moduli.  {opt modlabel}
can only be specified with {opt graph} and cannot be specified with 
{opt dlabel}.

{phang}
{opt rlopts(cline_options)} affect the rendition of the reference
unit circle; see {it:{help cline_options}}.

{phang}
{opt nogrid} suppresses the polar grid circles.  {opt nogrid} can only be
specified with {opt graph}.

{phang}
{marker pgrid}{...}
{cmd:pgrid(}[{it:numlist}][{cmd:,} {it:line_options}]{cmd:)}
[{cmd:pgrid(}[{it:numlist}][{cmd:,} {it:line_options}]{cmd:)...}{break}
{cmd:pgrid(}[{it:numlist}][{cmd:,} {it:line_options}]{cmd:)} determines the
radii and appearance of the polar grid circles.  By default, the graph
includes nine polar grid circles with radii .1, .2, ..., .9 that have the 
{opt grid} linestyle.  The {it:{help numlist}} specifies the radii for the
polar grid circles.  The {it:{help line_options}} determine the
appearance of the polar grid circles; see {it:{help line_options}}.  Since the
{opt pgrid()} option can be repeated, circles with different radii can have
distinct appearances.  {opt pgrid()} can only be specified with {opt graph}.

{dlgtab:Add plot}

{phang}
{opt addplot(plot)} adds specified plots to the generated graph; see 
{it:{help addplot_option}}.

{dlgtab:Y-Axis, X-Axis, Title, Caption, Legend, Overall}

{phang}
{it:twoway_options} are any of the options documented in 
{it:{help twoway_options}} excluding {opt by()}.  These include options for
titling the graph (see {it:{help title_options}}) and saving the graph to disk
(see {it:{help saving_option}}).


{title:Examples}

{phang}{cmd:. vecstable}{p_end}

{phang}{cmd:. vecstable, amat(A)}{p_end}


{title:Also see}

{psee}
Manual:  {bf:[TS] vecstable}{p_end}

{psee}
Online:  {helpb vec}{p_end}