sysuse auto, clear
sum weight
local meanwt = r(mean)
local meanwt: di %3.2f `meanwt'
sum length
local meanlen = r(mean)
local meanlen: di %3.2f `meanlen'
local obs = r(N)

tabout rep78 foreign using table34b.tex, replace ///
style(tex) font(italic) c(mean weight) f(0c) sum  ///
twidth(9) h1(Car type (mean weight in lbs.)) h3(nil) ///
title(Table 34: Short report example) fn(auto.dta) ///
topf(topblock.txt) topstr(`meanwt'| `meanlen') ///
botf(bottomblock.txt) botstr(`obs'|$S_DATE)