{smcl}
{* 23dec2004}{...}
{hline}
help for {hi:bystore}{right:(Author:  David Harrison)}
{hline}

{title:Repeat estimation command storing results}

{p 8 15 2}{cmd:bystore} {it:varlist}
		[{cmd:,} {cmdab:nol:abel} {cmdab:pre:fix(}{it:string}{cmd:)}
		{it:est_table_opts} ] : {it:est_cmd}


{title:Description}

{p 4 4 2}
{cmd:bystore} repeats the estimation command {it:est_cmd} (see help {help estcom})
on subsets of the data in the manner of {cmd:by} (see help {help by}), storing the
results of each estimation (see help {help estimates}).


{title:Options}

{p 4 8 2}{cmd:nolabel} specifies that the stored estimation results will be numbered
1, 2, etc rather than labelled using labels derived from the {cmd:egen} function
{cmd:group()} (see help {help egen}).

{p 4 8 2}{cmd:prefix(}{it:string}{cmd:)} allows users to choose a prefix for the
stored estimation results; the default is {cmd:_E}. All existing stored results with
this prefix will be dropped.

{p 4 8 2}{it:est_table_opts} are any of the options for the command {cmd:estimates table}; see
help {help estimates_table}.


{title:Examples}

{p 4 4 2}{cmd:. bystore foreign: regress price weight}

{p 4 4 2}{cmd:. bystore foreign, pre(_P) stats(N chi2): poisson rep78 weight}


{title:Maintainer}

    David A. Harrison
    Intensive Care National Audit & Research Centre
    david@icnarc.org


{title:Also see}

    Online:  help for {help by}, {help estcom}, {help estimates}