{smcl}
{* 22jul2010}{...}
{hline}
help for {hi:zscore}
{hline}

{title:Create new variable(s) containing standardized z-scores}

{p 8 14}{cmd:zscore} {it:varlist} [{it:weights}] [{cmd:if}] [{cmd:in}]
[{cmd:, stub(}{it:stubname}{cmd:)} {cmd:{ul:l}istwise} ]

{p 4 4 2}
{cmd:aweight}s, {cmd:fweight}s, and {cmd:iweight}s are allowed; see help
{help weights}.


{title:Description}

{p}{cmd:zscore} will create a new variable or variables, depending on
{it:varlist}, that contains the standardized z-scores.


{title:Options}

{p 0 4}{cmd:stub(}{it:stubname}{cmd:)} specifies the prefix that will be given
to the new variable(s).  If {cmd:stub()} is not specified, the default
{it:stubname} is "z_".

{p 0 4}{cmd:listwise} deletes missing values listwise, i.e., observations
with missing values on any of the variables are omitted (and receive the
system missing value ".").


{title:Authors}

{p 8}Shannon Driver, Stata Corporation{p_end}
{p 8}srd@stata.com{p_end}

{p 8 12}Jurjen Iedema, The Netherlands Institute for Social Research / SCP, The
Hague, the Netherlands{p_end}


{title:Examples}

{p 8 12}{inp:. zscore price}

{p 8 12}{inp:. zscore price weight mpg}

{p 8 12}{inp:. zscore price weight mpg if mpg > 20}

{p 8 12}{inp:. zscore price weight mpg in 5/20}

{p 8 12}{inp:. zscore price weight mpg, stub(zscore_)}

{p 8 12}{inp:. zscore price weight mpg, listwise}

{p 8 12}{inp:. zscore price weight mpg if mpg > 20 in 5/20, stub(zscore_) listwise}


{title:Also see}

{p 0 19}On-line:  help for {help generate}, {help summarize}{p_end}