matsize.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}
{* 28feb2005}{...}
{cmd:help matsize}
{hline}

{title:Title}

{p2colset 5 20 22 2}{...}
{p2col :{hi:[R] matsize} {hline 2}}Set the maximum number of variables in a model{p_end}
{p2colreset}{...}


{title:Syntax}

{p 8 20 2}{cmd:set} {cmdab:mat:size} {it:#} [{cmd:,} {cmdab:perm:anently}]

    where   {ccl min_matsize} {ul:<} {it:#} {ul:<} {ccl max_matsize}


{title:Description}

{pstd}
{cmd:set matsize} sets the maximum number of variables that can be included
in any of Stata's estimation commands.

{pstd}
For {help SpecialEdition:Stata/SE}, the default value is 400, but it may be
changed upward or downward.  The upper limit is 11,000.

{pstd}
For Intercooled Stata, the initial value is 200, but it may be changed upward
or downward.  The upper limit is 800.

{pstd}
The command may not be used with Small Stata; {cmd:matsize} is permanently
frozen at 40.


{title:Option}

{phang}
{cmd:permanently} specifies that, in addition to making the change right now,
the {cmd:matsize} setting be remembered and become the default setting when
you invoke Stata.


{title:Example}

    {cmd:. regress y x1-x200}
    {err}matsize too small
{p 8 8}
You have attempted to create a matrix with more than 200
rows or columns or to fit a model with more than 200
variables plus ancillary parameters.  You need to increase matsize using the
{cmd:set matsize} command; see help {help matsize}.
{p_end}
    {txt}{search r(908):r(908);}

    {cmd:. set matsize 250}

    {cmd:. regress y x1-x200}
      (output appears)


{title:Also see}

{psee}
Manual:  {bf:[R] matsize}

{psee}
Online:  {helpb creturn}, {helpb memory}
{p_end}