📄 qby.hlp
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{smcl}
{* 07dec2004}{...}
{cmd:help qby} {right:also see: {help undocumented}}
{hline}
{title:Title}
{p2colset 5 12 14 2}{...}
{p2col :{hi:qby} {hline 2}}Quietly repeat Stata command on subsets of the
data{p_end}
{title:Syntax}
{p 8 34 2}{cmd:qby} {it:varlist}{cmd::} {it:command}
{p 8 34 2}{cmd:qby} {it:varlist1} [{cmd:(}{it:varlist2}{cmd:)}]
[{cmd:,} {cmdab:s:ort} {cmd:rc0}]{cmd::} {it:command}
{p 8 34 2}{cmd:qbys} {it:varlist}{cmd::} {it:command}
{p 8 34 2}{cmd:qbys} {it:varlist1} [{cmd:(}{it:varlist2}{cmd:)}]
[{cmd:,} {cmd:rc0}]{cmd::} {it:command}
{title:Description}
{pstd}
{cmd:qby} and {cmd:qbys} are convenience commands and are equivalent to
{cmd:quietly by} {it:...}
and
{cmd:quietly bysort} {it:...}
{pstd}
See {helpb by} and {helpb quietly}.
{title:Also see}
{psee}
Online: help for
{helpb by},
{help byprog},
{helpb quietly}
{p_end}
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