d STB-10 srd14. Cook-Weisberg test of heteroscedasticity. d STB insert by Richard Goldstein, Qualitas, Brighton, MA. d Support: goldst@@harvarda.bitnet d After installation, see help ^cwhetero^. f srd14/cwhetero.ado f srd14/cwhetero.hlp f srd14/cwhetero.log f srd14/mtb_tree.dta f srd14/weisflok.dta f srd14/weisgas.dta