Quantile-quantile plot ----------------------
^qqplot2^ varname1 varname2 [^if^ exp] [^in^ range] [^,^ graph_options ]
Description -----------
^qqplot2^ plots the quantiles of varname1 against the quantiles of varname2.
Remarks -------
^qqplot2^ minutely generalises ^qqplot^ in the sense that the user can control the main title through the ^title()^ option.
Options -------
graph_options are options allowed with ^graph, twoway^, apart from ^symbol( )^, ^connect( )^ and ^sort^. Note that the ^title( )^ defaults to " Quantile-Quantile Plot". As a special case, ^title(.)^ blanks out the title.
Examples --------
. ^qqplot2 length width, ti(Length and width)^ . ^qqplot2 length width, ti(.)^
Author ------
Nicholas J. Cox, University of Durham, U.K. n.j.cox@@durham.ac.uk
Also see --------
On-line: help for @diagplots@