Agriculture Reference
In-Depth Information
Appendix
This is an explanation of a manual method to calculate the adjusted
treatment mean square and effective error mean square with the bal-
anced lattice design of Chapter 5. These calculations have been put
together in a do-file called ballatadj.do.
The saved scalars from the ANOVA (analysis of variance) estima-
tion command can be used to calculate the necessary adjustment term
μ. This is calculated as
(
)
Blockadj.MS-Intrablock errorMS
Bloc
µ=
(
)
k
2
kkadj.MS
Substituting in this equation results in the following calculation:
758 789167 322 9625
16 758 789167
.
-
.
0 0358982
.
=
.
The following equation entered in the Stata command window will
calculate this adjustment:
localu = ((
e(ss_3)
/
e(df_3)
)
- (
e(rmse)
^2))/
(
(e(df_1)
^2) * (
e(ss_3)
/
e(df_3)
))
231
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