* W.H. Greene, Econometric Analysis, Fourth Edition, 2000.
SAMPLE 1 20
* Example 8.2, p. 320.
* Data on ship accidents 
*             Ship Type    Year constructed   Amount of
*                         60-4 65-9 70-4 75-9  Service  Accidents
*           ------------- ------------------- 
READ  OBS   A  B  C  D  E YR60 YR65 YR70 YR75  SERV     ACTUAL 
       1    1  0  0  0  0   1    0    0    0    127       0
       2    1  0  0  0  0   0    1    0    0     63       4
       3    1  0  0  0  0   0    0    1    0   1095      18
       4    1  0  0  0  0   0    0    0    1   2244      11
       5    0  1  0  0  0   1    0    0    0  17176      29
       6    0  1  0  0  0   0    1    0    0  20370      53
       7    0  1  0  0  0   0    0    1    0  13099      44
       8    0  1  0  0  0   0    0    0    1   7117      18
       9    0  0  1  0  0   1    0    0    0   1179       1
      10    0  0  1  0  0   0    1    0    0    676       1
      11    0  0  1  0  0   0    0    1    0   1948       2
      12    0  0  1  0  0   0    0    0    1    274       1
      13    0  0  0  1  0   1    0    0    0    251       0
      14    0  0  0  1  0   0    1    0    0    288       0
      15    0  0  0  1  0   0    0    1    0   1208      11
      16    0  0  0  1  0   0    0    0    1   2051       4 
      17    0  0  0  0  1   1    0    0    0     45       0
      18    0  0  0  0  1   0    1    0    0    789       7
      19    0  0  0  0  1   0    0    1    0   2161      12
      20    0  0  0  0  1   0    0    0    1    542       1

* Regression results reported in Table 8.3, p. 321.
* Full Model
OLS ACTUAL B C D E YR65 YR70 YR75 
* Test for Differences across ship type
TEST
 TEST B=0
 TEST C=0
 TEST D=0
 TEST E=0
END
* Test for Differences across year
TEST
 TEST YR65=0
 TEST YR70=0
 TEST YR75=0
END

* Time Effects
OLS ACTUAL YR65 YR70 YR75
* Type Effects
OLS ACTUAL B C D E 
STOP