|
|
|
||||
|
|
|||||
Use data file crff24-1, page 596.
use http://www.ats.ucla.edu/stat/stata/examples/kirk/crff24-1, clear
list
a b c d y
1. 0 0 0 0 3
2. 0 0 0 0 6
3. 0 0 1 1 4
4. 0 0 1 1 3
5. 0 1 0 1 7
6. 0 1 0 1 6
7. 0 1 1 0 7
8. 0 1 1 0 8
9. 1 0 0 1 2
10. 1 0 0 1 2
11. 1 0 1 0 2
12. 1 0 1 0 3
13. 1 1 0 0 5
14. 1 1 0 0 6
15. 1 1 1 1 9
16. 1 1 1 1 11
Parts of Table 14.3-1, page 672.
table a c b, cont(sum y)
----------+-------------------------
| b and c
| ---- 0 --- ---- 1 ---
a | 0 1 0 1
----------+-------------------------
0 | 9 7 13 15
1 | 4 5 11 20
----------+-------------------------
table a b, cont(sum y) row col
----------+--------------------
| b
a | 0 1 Total
----------+--------------------
0 | 16 28 44
1 | 9 31 40
|
Total | 25 59 84
----------+--------------------
table a c, cont(sum y) row
----------+-----------
| c
a | 0 1
----------+-----------
0 | 22 22
1 | 15 25
|
Total | 37 47
----------+-----------
table b c, cont(sum y)
----------+-----------
| c
b | 0 1
----------+-----------
0 | 13 12
1 | 24 35
----------+-----------
Table 14.3-2, page 674.
anova y a b c d a*b a*c b*c
Number of obs = 16 R-squared = 0.9189
Root MSE = 1.06066 Adj R-squared = 0.8480
Source | Partial SS df MS F Prob > F
-----------+----------------------------------------------------
Model | 102.00 7 14.5714286 12.95 0.0009
|
a | 1.00 1 1.00 0.89 0.3734
b | 72.25 1 72.25 64.22 0.0000
c | 6.25 1 6.25 5.56 0.0462
d | 1.00 1 1.00 0.89 0.3734
a*b | 6.25 1 6.25 5.56 0.0462
a*c | 6.25 1 6.25 5.56 0.0462
b*c | 9.00 1 9.00 8.00 0.0222
|
Residual | 9.00 8 1.125
-----------+----------------------------------------------------
Total | 111.00 15 7.40
Use data file lsff33-2, page 688.
use http://www.ats.ucla.edu/stat/stata/examples/kirk/lsff33-2, clear
list
a b c s y
1. 0 0 0 0 3
2. 0 1 1 0 4
3. 0 2 2 0 6
4. 0 0 0 1 1
5. 0 1 1 1 4
6. 0 2 2 1 6
7. 1 0 2 2 7
8. 1 1 0 2 3
9. 1 2 1 2 3
10. 1 0 2 3 5
11. 1 1 0 3 2
12. 1 2 1 3 3
13. 2 0 1 4 4
14. 2 1 2 4 7
15. 2 2 0 4 3
16. 2 0 1 5 2
17. 2 1 2 5 5
18. 2 2 0 5 2
Table 14.8-1, pages 688 and 689.
tabdisp s b, cellvar(y) by(a) concise
----------+-----------------
| b
a and s | 0 1 2
----------+-----------------
0 |
0 | 3 4 6
1 | 1 4 6
----------+-----------------
1 |
2 | 7 3 3
3 | 5 2 3
----------+-----------------
2 |
4 | 4 7 3
5 | 2 5 2
----------+-----------------
table b c, cont(sum y) by(a)
----------+-----------------
| c
a and b | 0 1 2
----------+-----------------
0 |
0 | 4
1 | 8
2 | 12
----------+-----------------
1 |
0 | 12
1 | 5
2 | 6
----------+-----------------
2 |
0 | 6
1 | 12
2 | 5
----------+-----------------
table c b, cont(sum y) row col
----------+---------------------------
| b
c | 0 1 2 Total
----------+---------------------------
0 | 4 5 5 14
1 | 6 8 6 20
2 | 12 12 12 36
|
Total | 22 25 23 70
----------+---------------------------
Table 14.8-2, page 690.
Note: Kirk calls a*b*c residual and calls the Residual b*c*s|a.
anova y a / s|a b c b*c*a
Number of obs = 18 R-squared = 0.9504
Root MSE = .666667 Adj R-squared = 0.8595
Source | Partial SS df MS F Prob > F
-----------+----------------------------------------------------
Model | 51.1111111 11 4.64646465 10.45 0.0046
|
a | .111111111 2 .055555556 0.03 0.9742
s|a | 6.33333333 3 2.11111111
-----------+----------------------------------------------------
b | .777777778 2 .388888889 0.88 0.4640
c | 43.1111111 2 21.5555556 48.50 0.0002
b*c*a | .777777778 2 .388888889 0.87 0.4640
|
Residual | 2.66666667 6 .444444444
-----------+----------------------------------------------------
Total | 53.7777778 17 3.16339869
Use data file lsff43-2, page 693.
use http://www.ats.ucla.edu/stat/stata/examples/kirk/lsff43-2, clear
list
a b c d y
1. 0 0 0 0 2
2. 0 1 3 0 3
3. 0 2 2 0 3
4. 0 3 1 0 6
5. 1 0 1 0 2
6. 1 1 0 0 4
7. 1 2 3 0 5
8. 1 3 2 0 4
9. 2 0 2 0 5
10. 2 1 1 0 8
11. 2 2 0 0 7
12. 2 3 3 0 6
13. 3 0 3 0 9
14. 3 1 2 0 9
15. 3 2 1 0 11
16. 3 3 0 0 10
17. 0 0 0 1 1
18. 0 1 3 1 2
19. 0 2 2 1 2
20. 0 3 1 1 3
21. 1 0 1 1 3
22. 1 1 0 1 3
23. 1 2 3 1 4
24. 1 3 2 1 3
25. 2 0 2 1 6
26. 2 1 1 1 6
27. 2 2 0 1 5
28. 2 3 3 1 7
29. 3 0 3 1 8
30. 3 1 2 1 8
31. 3 2 1 1 10
32. 3 3 0 1 7
Table 14.9-1, page 693.
tabdisp a b, cellvar(y) by(d)
----------+-----------------------
| b
d and a | 0 1 2 3
----------+-----------------------
0 |
0 | 2 3 3 6
1 | 2 4 5 4
2 | 5 8 7 6
3 | 9 9 11 10
----------+-----------------------
1 |
0 | 1 2 2 3
1 | 3 3 4 3
2 | 6 6 5 7
3 | 8 8 10 7
----------+-----------------------
table a d, cont(sum y) col
----------+--------------------
| d
a | 0 1 Total
----------+--------------------
0 | 14 8 22
1 | 15 13 28
2 | 26 24 50
3 | 39 33 72
----------+--------------------
table b d, cont(sum y) col
----------+--------------------
| d
b | 0 1 Total
----------+--------------------
0 | 18 18 36
1 | 24 19 43
2 | 26 21 47
3 | 26 20 46
----------+--------------------
Table 14.9-2, page 695.
anova y a b c d a*d b*d c*d
Number of obs = 32 R-squared = 0.9618
Root MSE = .866025 Adj R-squared = 0.9013
Source | Partial SS df MS F Prob > F
-----------+----------------------------------------------------
Model | 226.50 19 11.9210526 15.89 0.0000
|
a | 194.50 3 64.8333333 86.44 0.0000
b | 9.25 3 3.08333333 4.11 0.0320
c | 7.75 3 2.58333333 3.44 0.0517
d | 8.00 1 8.00 10.67 0.0068
a*d | 2.00 3 .666666667 0.89 0.4747
b*d | 2.75 3 .916666667 1.22 0.3441
c*d | 2.25 3 .75 1.00 0.4262
|
Residual | 9.00 12 .75
-----------+----------------------------------------------------
Total | 235.50 31 7.59677419
UCLA Researchers are invited to our Statistical Consulting Services
We recommend others to our list of Other Resources for Statistical Computing Help
These pages are Copyrighted (c) by UCLA Academic Technology Services