Graph Lorenz Curve

Stata glcurve:
Given a variable varname, call it x with c.d.f. F(x), glcurve draws its generalized Lorenz curve and/or generates two new variables containing the generalized Lorenz ordinates for x; i.e., GL(p) at each p = F(x). For a population ordered in ascending order of x, a graph of GL(p) against p plots the cumulative total of x divided by population size against cumulative population share GL(1) = mean(x). glcurve can also be used to derive many other related concepts such as Lorenz curves, concentration curves, and "three is of poverty" (TIP) curves, with appropriate definition of varname, order of cumulation (set with the sortvar option), and normalization (e.g., by means of varname). glcurve with the lorenz, atip, or rtip option can also be used directly to draw the related Lorenz, concentration, and TIP curves.

The graphs drawn by glcurve are relatively basic. For graphs with full user control over formatting and labeling, users should use glcurve to generate the ordinates of the graph required using the pvar(newvarname) and glvar(newvarname) options and then should draw the graph by using graph twoway.