{smcl} {* *! version 1.1.0 7Aug2014}{...} {cmd:help gboxplot}{right: ({browse "http://www.stata-journal.com/article.html?article=st0533":SJ18-3: st0533})} {hline} {title:Title} {p2colset 5 17 21 2}{...} {p2col :{cmd:gboxplot} {hline 2}}Box plot for skewed or heavy-tailed distributions{p_end} {p2colreset}{...} {title:Syntax} {p 8 16 2} {cmd:gboxplot} {varname} {ifin} [{cmd:,} {opth out:lier(varname)} {opt bdp(#)} {opt perc:out(#)} {opt nog:raph} {opt delta(#)}] {title:Description} {pstd} {cmd:gboxplot} creates the box plot for skewed or heavy-tailed distributions. {title:Options} {phang} {opt outlier(varname)} creates {it:varname} to identify individuals lying outside the interval defined by the pivotal values. {phang} {opt bdp(#)} sets the desired breakdown point (as a percentage) for the estimation of the parameters of the Tukey distribution. The default is {cmd:bdp(10)}. The argument of {cmd:bdp()} can be set in the open interval (0, 25). {phang} {opt percout(#)} sets the desired proportion (as a percentage) of points outside the interval delimited by the generalized pivotal values in the case of clean data. The default is {cmd:percout(0.7)}. The argument of {cmd:percout()} can be set in the open interval (0, 25). {phang} {opt nograph} suppresses the display of the generalized box plot. {phang} {opt delta(#)} sets the shifting constant implied in the definition of the values r_i in the preliminary transformation of the data. The default is {cmd:delta(0.1)}. {title:Example} {pstd}Setup{p_end} {phang2}. {stata "webuse auto"}{p_end} {pstd}Creating the generalized box plot{p_end} {phang2}. {stata "gboxplot price"}{p_end} {title:Stored results} {pstd} {cmd:gboxplot} stores the following in {cmd:e()}: {synoptset 15 tabbed}{...} {p2col 5 15 19 2: Scalars}{p_end} {synopt:{cmd:e(g)}}estimated skewness parameter of the Tukey g-and-h distribution{p_end} {synopt:{cmd:e(h)}}estimated elongation parameter of the Tukey g-and-h distribution{p_end} {synopt:{cmd:e(upperW)}}value of the right adjacent value (extremity of the right whisker){p_end} {synopt:{cmd:e(lowerW)}}value of the left adjacent value (extremity of the left whisker){p_end} {title:Authors} {pstd} Christopher Bruffaerts, Vincenzo Verardi, and Catherine Vermandele {title:Also see} {p 4 14 2} Article: {it:Stata Journal}, volume 18, number 3: {browse "http://www.stata-journal.com/article.html?article=st0533":st0533}{p_end} {p 4 14 2} Manual: {manlink R graph box}{p_end}