{smcl}
{* 20May2009}{...}
{cmd:help addobs}
{hline}

{title:Title}

{p2colset 5 18 20 2}{...}
{p2col :{hi:addobs} {hline 2}} Add an observation to the end of a dataset to allow post-estimation 
use of {cmd:predict}.
{p2colreset}{...}

{title:Syntax}

{p 8 15 2}{cmd:addobs} 
    {ifin}
    [{cmd:,}
{cmd:x(}{it:variable}={it:values}...{cmd:)}
{cmd:mean(}{it:variable-list}{cmd:)}
{cmd:min(}{it:variable-list}{cmd:)}
{cmd:max(}{it:variable-list}{cmd:)}
{cmd:zero(}{it:variable-list}{cmd:)}
{cmd:one(}{it:variable-list}{cmd:)}
{cmd:add1(}{it:variable-list}{cmd:)}
{cmd:addhalf(}{it:variable-list}{cmd:)}
{cmd:addsd(}{it:variable-list}{cmd:)}
{cmd:addhalfsd(}{it:variable-list}{cmd:)}
{cmd:sub1(}{it:variable-list}{cmd:)}
{cmd:subhalf(}{it:variable-list}{cmd:)}
{cmd:subsd(}{it:variable-list}{cmd:)}
{cmd:subhalfsd(}{it:variable-list}{cmd:)}
{cmd:svy}
{cmdab:nol:ist}
{cmd:row(}{it:row-to-addsvy}{cmd:)}
{cmdab:lin:ear(}{it:variable}{cmd:)}
{cmdab:squ:ared(}{it:variable}{cmd:)}
{cmdab:cub:ed(}{it:variable}{cmd:)}

{title:Description}

{pstd}
{opt addobs} 
allows you to append a new observation to the current dataset.

{title:Options}
{p 1 1 2}

{synoptset 14 tabbed}{...}
{synopthdr}
{synoptline}
{synopt :{opt x()}} for paired variable value labels such as {it:variable}={it:value},
where the {it:value} can be a number, or the strings mean, med, min, or max.{p_end}
{synopt :{opt mean()}} listing variables to set to their mean.{p_end}
{synopt :{opt min()}} listing variables to set to their minimum.{p_end}
{synopt :{opt max()}} listing variables to set to their maximum.{p_end}
{synopt :{opt zero()}} listing variables to set to 0.{p_end}
{synopt :{opt one()}} listing variables to set to 1.{p_end}

{synopt :{opt add1()}} listing variables whose values are increased by 1.{p_end}
{synopt :{opt addhalf()}} listing variables whose values are increased by .5.{p_end}
{synopt :{opt addsd()}} listing variables whose values are increased by a SD.{p_end}
{synopt :{opt addhalfsd()}} listing variables whose values are increased by SD/2.{p_end}

{synopt :{opt sub1()}} listing variables whose values are decreased by 1.{p_end}
{synopt :{opt subhalf()}} listing variables whose values are decreased by .5.{p_end}
{synopt :{opt subsd()}} listing variables whose values are decreased by a SD.{p_end}
{synopt :{opt subhalfsd()}} listing variables whose values are decreased by SD/2.{p_end}

{synopt :{opt nol:list}}do not list added observation.{p_end}
{synopt :{opt svy}}compute mean and standard deviation with svy: mean.{p_end}
{synopt :{opt row()}}row number for revised observation.{p_end}

{synopt :{opt linear()}}linear term corresponding to squared and/or cubed term.{p_end}
{synopt :{opt squared()}}squared term corresponding to linear term.{p_end}
{synopt :{opt cubed()}}cubed term corresponding to linear term.{p_end}
{p 4 6 2}

{title:Examples:}

{phang}{cmd:. addobs}

{title:Author}

{p 5 5}
Scott Long{break}
Indiana University{break}
Departments of Sociology & Statistics{break}
jslong{@}indiana.edu{break}
{browse "http://www.indiana.edu/~jslsoc/"}{p_end}