do nlsw_data_setup
tabout pregnant south union race sex [iw=wt] ///
using table27.xls, replace  ///
c(freq col) f(0c)  ///
plugc(1:2 1:3) show(prepost) ///
title(Table 27: Plugging columns - a problem) ///
fn(Source: nlsw88.dta) open