d STB-38 sg70. Interquantile and simultaneous-quantile regression. d STB insert by William Gould, Stata Corporation. d Support: tech-support@@stata.com d After installation, see help ^sqreg^ and help ^iqreg^. f sg70/bsampl_w.ado f sg70/iqreg.ado f sg70/iqreg.hlp f sg70/qreg_c.ado f sg70/sqreg.ado f sg70/sqreg.hlp