{smcl}
{* 13 May 2011}{...}
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help for {hi:labvalcombine}
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{title:Combine two or more sets of value labels}

{p 4 10 2}
{cmd:labvalcombine} 
{it:vallblname1}
{it:vallblname2}
[{it:vallblname3} ...]
[ , {cmd:lblname(}{it:lblname}{cmd:)} ]


{title:Description}

{p 4 4 2}{cmd:labvalcombine} combines two or more sets of value labels
into one. Note that existing definitions may be overwritten by the
definitions in value label sets named later in the command. Thus if the
command is {cmd:labvalcombine lbl1 lbl2}, definitions in {cmd:lbl2} will
overwrite those in {cmd:lbl1} for the same values. Users should specify
the order of names accordingly. A safe strategy is to use a new name for
the set, but users can make their own choices. 

{p 4 4 2}By default the first name specified will be used for the new
set of value labels. 

{p 4 8 2}The combined set of definitions is listed. This display may be
suppressed with {help quietly}. 


{title:Options} 

{p 4 8 2}{cmd:lblname()} supplies a name for the combined set. This may
be a new name or an existing name. 


{title:Examples}

{p 4 8 2}{cmd:. label define lbl1 1 "one" 2 "two" 3 "three"}{p_end}
{p 4 8 2}{cmd:. label define lbl2 2 "deux" 3 "three" 4 "four"}{p_end}
{p 4 8 2}{cmd:. labvalcombine lbl1 lbl2, lblname(both)}{p_end}
{p 4 8 2}{cmd:. labvalcombine lbl1 lbl2, lblname(lbl2)}{p_end}
{p 4 8 2}{cmd:. labvalcombine lbl1 lbl2}


{title:Author} 

{p 4 4 2}Nicholas J. Cox, Durham University, U.K.{break}
n.j.cox@durham.ac.uk


{title:Acknowledgments}  

{p 4 4 2}Jorge Eduardo P{c e'}rez P{c e'}rez suggested this problem on 
Statalist. 


{title:Also see}

{p 4 4 2}On-line: help for {manhelp label D}