canon.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}
{* 06apr2005}{...}
{cmd:help canon}{right:dialog: {bf:{dialog canon}}{space 15}}
{right:also see: {help canon postestimation}}
{hline}

{title:Title}

{p2colset 5 19 21 2}{...}
{p2col :{bf:[MV] canon} {hline 2}}Canonical Correlations{p_end}
{p2colreset}{...}


{title:Syntax}

{p 8 15 2}{cmd:canon} {cmd:(}{it:{help varlist:varlist1}}{cmd:)}
{cmd:(}{it:varlist2}{cmd:)}
{ifin} {weight} [{cmd:,} {it:options}]

{synoptset 14 tabbed}{...}
{synopthdr}
{synoptline}
{syntab :Model}
{synopt :{opt coefm:atrix}}output matrices of raw coefficients{p_end}
{synopt :{opt stdc:oef}}output matrices of standardized coefficients{p_end}
{synopt :{opt lc(#)}}calculates the linear combinations for canonical
correlation #{p_end}
{synopt :{opt fir:st(#)}}calculates the linear combinations for the first #
canonical correlations{p_end}
{synopt :{opt noc:onstant}}do not subtract means when calculating
correlations{p_end}

{syntab :Reporting}
{synopt :{opt l:evel(#)}}set confidence level; default is
{cmd:level(95)}{p_end}
{synopt :{opth test(numlist)}}display significance tests for the specified
canonical correlations{p_end}
{synopt :{opt notest:s}}do not display tests{p_end}
{synopt :{opth f:ormat(%fmt)}}numerical format for coefficient
matrices; default is {cmd:format(%8.4f)}{p_end}
{synoptline}
{p2colreset}{...}
{p 4 6 2}{cmd:by} and {cmd:statsby} may be used with {\ty canon}; see
{help prefix}.{p_end}
{p 4 6 2}{opt aweight}s, {opt fweight}s are allowed; see {help weight}.{p_end}
{p 4 6 2}See {help canon postestimation} for features available after
estimation.


{title:Description}

{pstd}
{cmd:canon} estimates canonical correlations and provides the coefficients
for calculating the appropriate linear combinations corresponding to those
correlations.

{pstd}
{cmd:canon} typed without arguments redisplays previous estimation results.

{title:Options}

{dlgtab:Model}

{phang}{cmd:coefmatrix} specifies that the first part of the output contain
the raw coefficients of the canonical correlations in matrix form.  The
default is to present the raw coefficients, standard errors, and confidence
intervals in the standard estimation table.  {cmd:coefmatrix} may not be
specified with {cmd:stdcoef}.

{phang}{cmd:stdcoef} specifies that the first part of the output contain
the standard coefficients of the canonical correlations in matrix form.  The
default is to present the raw coefficients, standard errors, and confidence
intervals in the standard estimation table.  {cmd:stdcoef} may not be
specified with {cmd:coefmatrix}.

{phang}{opt lc(#)} specifies that linear combinations for the
canonical correlation # be calculated.  By default,
all are calculated.

{phang}{opt first(#)} specifies that linear combinations for the
first {it:#} of canonical correlations be calculated.  By default, all
are calculated.

{phang}{cmd:noconstant} specifies that means not be subtracted when
calculating correlations.

{dlgtab:Reporting}

{phang}{opt level(#)} specifies the confidence level, as a
percentage, for confidence intervals of the coefficients.  These 
"confidence intervals" are the result of an approximate
calculation; see {bf:[MV] canon}.

{phang}{opth test(numlist)} specifies that significance tests
of the canonical correlations in the {it:numlist} be displayed.  Because of
the nature of significance testing, if there are 3 canonical correlations,
{cmd:test(1)} will test the significance of all 3 correlations,
{cmd:test(2)} will test the significance of canonical correlations
2 and 3, and {cmd:test(3)} will test the significance of the third
canonical correlation alone.

{phang}{cmd:notests} specifies that significance tests of the canonical
correlations not be displayed.

{phang}{opth format(%fmt)} specifies the display format for numbers in coefficient matrices;
the default is {cmd:format(%8.4f)}.
{cmd:format()} may only be specified with {cmd:stdcoef} or {cmd:coefmatrix}.


{title:Examples}

{p 4 8 2}{cmd:. canon (length weight headroom trunk) (displ mpg gear_ratio turn)}{p_end}
{phang}{cmd:. canon (length weight headroom trunk) (displ mpg gear_ratio turn), coefmatrix}{p_end}
{phang}{cmd:. canon (length weight headroom trunk) (displ mpg gear_ratio turn), stdcoef}{p_end}
{phang}{cmd:. canon (length weight headroom trunk) (displ mpg gear_ratio turn), lc(2)}{p_end}
{phang}{cmd:. canon (length weight headroom trunk) (displ mpg gear_ratio turn), first(3) stdcoef}{p_end}


{title:Also see}

{psee}
Manual:  {bf:[MV] canon}

{psee}
Online:  {help canon postestimation};{break}
{helpb correlate}, {helpb factor}, {helpb mvreg}, {helpb pca}, {helpb pcorr}, 
{helpb regress}
{p_end}