{smcl}
{* 23 aug 2002}{...}
{hline}
help for {hi:gengamma}
{hline}

{title:Generate random deviates from a gamma distribution}

{p 8 14}{cmd:gengamma} {it:newvar} 
	[{cmd:if} {it:exp}] [{cmd:in} {it:range}] [{cmd:,}
	{cmd:alpha(}{it:#}|{it:varname}{cmd:)}
	{cmd:beta(}{it:#}|{it:varname}{cmd:)}
	{cmd:gamma(}{it:#}|{it:varname}{cmd:)}

{title:Description}

{p}{cmd:gengamma} generates data {it:newvar} from a two parameter 
gamma distribution such that the mean is {cmd:alpha}*{cmd:beta} and the 
variance is {cmd:alpha}*{cmd:beta}^2.  If the third parameter, 
{cmd:gamma}, is specified then {it:newvar} is transformed into a 
set of random deviates from the generalized gamma distribution.  
That is, if y is two parameter Gamma(a,b), then z = b(y/b)^(1/g)
is three paramater Gamma(a,b,g).

{title:Options}

{p 0 4}{cmd:alpha(}{it:#}|{it:varname}{cmd:)} specifies the first parameter, 
alpha, either constant or a variable.

{p 0 4}{cmd:beta(}{it:#}|{it:varname}{cmd:)} specifies the second parameter, 
beta, either constant or a variable.

{p 0 4}{cmd:gamma(}{it:#}|{it:varname}{cmd:)} specifies the third parameter, 
gamma, either constant or a variable.

{title:Example}

{p 8 12}{inp:. gengamma x, alpha(2) beta(3)}{p_end}
{p 8 12}{inp:. summarize x}{p_end}