svy_estat.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}
{* 29mar2005}{...}
{cmd:help svy estat}{...}
{right:dialog:  {bf:{dialog svy_estat:estat}}}
{right:also see:  {helpb estat}}
{hline}
{p2colset 5 21 25 2}{...}

{title:Title}

{pstd}
{hi:[SVY] estat} {hline 2}
Postestimation statistics for survey data


{title:Syntax}

{phang}
Survey design characteristics

{phang2}
{cmd:estat} {opt svyset}

{phang}
Design and misspecification effects for point estimates

{phang2}
{cmd:estat} {opt eff:ects}
	[{cmd:,} {it:{help "svy estat##effect_options":effect_options}}]

{phang}
Design and misspecification effects for linear combinations of point estimates

{phang2}
{cmd:estat} {opt lceff:ects} {it:exp}
	[{cmd:,} {it:{help "svy estat##effect_options":effect_options}}]

{phang}
Subpopulation sizes

{phang2}
{cmd:estat} {opt size}
	[{cmd:,} {it:{help "svy estat##size_options":size_options}}]

{phang}
Display covariance matrix estimates

{phang2}
{cmd:estat} {opt vce}
	[{cmd:,} {it:{help "estat##estat_vce_options":estat_vce_options}}]


{marker effect_options}{...}
{p2col :{it:effect_options}}description{p_end}
{p2line}
{p2col :{opt deff}}report the DEFF design effects{p_end}
{p2col :{opt deft}}report the DEFT design effects{p_end}
{p2col :{opt srs:subpop}}report
	the design effects assuming SRS within subpopulation{p_end}
{p2col :{opt meff}}report the MEFF design effects{p_end}
{p2col :{opt meft}}report the MEFT design effects{p_end}
{p2line}

{marker size_options}{...}
{p2col :{it:size_options}}description{p_end}
{p2line}
{p2col :{opt obs}}display
	the number of observations (within subpopulation){p_end}
{p2col :{opt size}}display the subpopulation sizes{p_end}
{p2line}


{title:Description}

{pstd}
{cmd:estat} {cmd:svyset} reports the survey design characteristics associated
with the current estimation results.

{pstd}
{cmd:estat} {cmd:effects} displays a table of design and misspecification
effects for each estimated parameter.

{pstd}
{cmd:estat} {cmd:lceffects} displays a table of design and misspecification
effects for a linear combination of the parameter estimates.

{pstd}
{cmd:estat} {cmd:size} displays a table of sample and population sizes for
each estimated subpopulation mean, proportion, ratio, or total.  This
command is only available after
{helpb "svy: mean"},
{helpb "svy: proportion"},
{helpb "svy: ratio"},
and
{helpb "svy: total"}.

{pstd}
{cmd:estat} {cmd:vce} displays the covariance or correlation matrix of the
parameters of the previous model; see {helpb estat}.


{title:Options for estat effects and lceffects}

{phang}
{opt deff} and {opt deft}
request that the design-effect measures DEFF and DEFT be displayed.

{pmore}
Note that options {opt deff} and {opt deft} are not allowed with estimation
results that employed direct standardization of poststratification.

{phang}
{opt srssubpop}
requests that DEFF and DEFT be computed using
an estimate of SRS (simple random sampling) variance for sampling
within a subpopulation.  By default, DEFF and DEFT are computed
using an estimate of the SRS variance for sampling from the entire
population.  Typically, {opt srssubpop} is given when computing
subpopulation estimates by strata or by groups of strata.

{phang}
{opt meff} and {opt meft}
request that the misspecification effect measures meff and meft be displayed.


{title:Options for estat size}

{phang}
{opt obs} requests that the number of observations used to 
compute the estimate be displayed for each row of estimates.

{phang}
{opt size} requests that the estimate of the subpopulation size be
displayed for each row of estimates.  The subpopulation size estimate equals
the sum of the weights for those observations in the estimation
sample that are also in the specified subpopulation.  The estimated population
size is reported when a subpopulation is not specified.


{title:Options for estat vce}

{phang}
See {it:{help "estat##estat_vce_options":estat_vce_options}}.


{title:Examples}

{phang}
{cmd:. webuse nhanes2}
{p_end}
{phang}
{cmd:. svy: mean tcresult tgresult}
{p_end}
{phang}
{cmd:. estat svyset}
{p_end}
{phang}
{cmd:. estat effects, deff deft meff meft}
{p_end}
{phang}
{cmd:. estat size}
{p_end}

{phang}
{cmd:. webuse nhanes2b}
{p_end}
{phang}
{cmd:. svy: mean iron, over(sex)}
{p_end}
{phang}
{cmd:. estat effects, deff deft}
{p_end}
{phang}
{cmd:. estat effects, srssubpop}
{p_end}

{phang}
{cmd:. webuse nmihs}
{p_end}
{phang}
{cmd:. svy: mean birthwgt, over(race)}
{p_end}
{phang}
{cmd:. estat effects, deff deft}
{p_end}
{phang}
{cmd:. estat effects, srssubpop}
{p_end}

{phang}
{cmd:. webuse nhanes2b}
{p_end}
{phang}
{cmd:. svy: mean zinc, over(sex)}
{p_end}
{phang}
{cmd:. estat effects, meff meft}
{p_end}

{phang}
{cmd:. webuse nhanes2b}
{p_end}
{phang}
{cmd:. svy: mean tcresult, over(sex)}
{p_end}
{phang}
{cmd:. estat lceffects, [tcresult]Male - [tcresult]Female, deff deft meff meft}
{p_end}


{title:Also see}

{psee}
Manual:  {hi:[SVY] estat}

{psee}
Online:  {helpb estat}; {helpb svy}, {help svy postestimation}
{p_end}