{smcl}
{* September 5, 2007 @ 13:35:16}{...}
{hi:help ckvarclear} 
{hline}

{title:Title}

{pstd}
{cmd:ckvarclear} - clears characteristics used by ckvar 
{p_end}

{title:Syntax}
{* put the syntax in what follows. Don't forget to use [ ] around optional items}
{p 8 16 2}
   {cmd: ckvarclear}
   [{varlist}] 
[  {cmd:,}
   {opt stubs(stubs to clear)}
	]
{p_end}

{title:Description}

{pstd}
This is a helper command for {help ckvar} which clears characteristics used for
validation or scoring. Its main use is when experimenting with {help ckvar}.
{p_end}

{title:Options}

{phang}{cmd:stubs} specifies that {help chchar##stubs:stubs} (or prefixes) whose
characteristics should be cleared. Its default value is {cmd:valid}.
{p_end}

{title:Example(s)}

{phang}{cmd:. ckvarclear}{p_end}
{phang2}Clears all characteristics whose names start with {hi:valid_}
from all variables in the dataset.
{p_end}

{phang}{cmd:. ckvarclear foo bar, stubs(valid score)}{p_end}
{phang2}Clears all characteristics whose names start with {hi:valid_}
and {hi:score} from the two variables {hi:foo} and {hi:bar}.
{p_end}

{title:Notes}

{pstd}
Clearing characteristics from just a few of the variables could cause
{help ckvar} to have problems.
{p_end}

{title:Also see}

{psee}
Online: help for {help ckvar}, {help ckvaredit}, {help ckvardo}, and {help dochar}.
{p_end}

{title:Author}

{pstd}
Bill Rising, StataCorp{break}
email: brising@stata.com{break}
web: {browse "http://homepage.mac.com/brising":http://homepage.mac.com/brising}
{p_end}

