. sysuse auto, clear
(1978 Automobile Data)

. reg mpg price wei len 

      Source |       SS           df       MS      Number of obs   =        74
-------------+----------------------------------   F(3, 70)        =     46.63
       Model |  1628.52531         3  542.841771   Prob > F        =    0.0000
    Residual |  814.934146        70  11.6419164   R-squared       =    0.6665
-------------+----------------------------------   Adj R-squared   =    0.6522
       Total |  2443.45946        73  33.4720474   Root MSE        =     3.412

------------------------------------------------------------------------------
         mpg |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       price |     -0.000      0.000    -1.03   0.305       -0.001       0.000
      weight |     -0.003      0.002    -1.72   0.091       -0.007       0.000
      length |     -0.097      0.058    -1.67   0.099       -0.212       0.019
       _cons |     49.685      6.329     7.85   0.000       37.062      62.308
------------------------------------------------------------------------------

. regfit

mpg =  49.68 - 0.00*price - 0.00*weight - 0.10*length
      (6.33) (0.00)       (0.00)        (0.06)
       N = 74, R2 = 0.67, adj-R2 = 0.65
Note: S.E. in parentheses