Computed theoretical power for N=100 and N=200 scenarios

Modules/ado/plus/m/metainf.hlp

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+.-
+help for ^metainf^                               (STB-47: sbe26; STB-56: sbe26.1)
+.-
+
+Influence of a single study in the meta-analysis estimates
+----------------------------------------------------------
+
+	^metainf^ theta setheta [^if^ exp] [^in^ range] [,^id(^labvar^)^ ^eform^ ^random^
+                               ^print^ graph_options]
+
+
+Description
+-----------
+
+^metainf^ investigate the influence of a single study on the overall meta-
+analysis estimate. This command shows graphically the results of an influence 
+analysis, in which the meta-analysis estimates are computed omitting one study 
+in each turn.
+
+^theta^ is the effect estimated from the individual study, and ^setheta^ is its 
+standard error. For example theta might be a difference in means, a log rate 
+ratio, a log odds ratio, or a log hazard ratio.
+
+If you have a dataset which contains data for all studies, then the @byvar@ 
+command can be used to derive the effect estimates and standard errors for the 
+individual studies. For example:
+
+    . ^sort study^
+    . ^byvar study, coef(group) se(group) generate:^
+    . ^quietly poisson cases group, e(pyrs)^
+    . ^sort study^
+    . ^qui by study: keep if _n==1^
+    . ^rename _C_1 logrr^
+    . ^rename _S_1 logse^
+    . ^metainf logrr logse, id(study)^
+
+Alternatively, the @collapse@ command may be useful.
+
+
+Options
+-------
+
+^id(^labvar^)^ is a variable which is used to label the studies.  
+
+^eform^ requests that the output is exponentiated. 
+
+^random^ request random-effects estimates. By default fixed-effects estimates 
+are computed.
+
+^print^ shows the estimates, and their 95% confidence interval, of the meta-
+analysis estimates omitting one study in each turn. These values are used to 
+make the graphic.
+
+All ^hplot^ options are also available.
+
+
+Note
+----
+
+To run the ^metainf^ command, the ^meta^ [STB-43 sbe16.2, STB-42 sbe16.1, 
+STB-38 sbe16] and the ^hplot^ (Cox 1999a, 1999b) command must be installed.
+
+
+Examples
+--------
+
+    . ^metainf logrr logse, print id(studyid)^ 
+    . ^metainf logrr logse, random print id(studyid)^ 
+    . ^metainf logrr logse, random eform id(studyid) format(%4.2f)^ 
+
+
+References
+----------
+
+    Cox NJ (1999a). -hplot- and -hbar- for presentation graphics. Proceedings 
+    of the 5th Stata UK user group meeting, London, UK. 
+
+    Cox NJ (1999b). De tablas a gr<67>ficos, presentaciones en Stata. Proceedings 
+    of the 1st Iberian user group meeting, Cordoba, Spain.
+
+
+Author
+------
+
+       Aurelio Tobias
+       Universidad Miguel Hernandez, Alicante, Spain
+       email: bledatobias@@ctv.es
+
+
+Also see
+--------
+
+On-line:  help for @byvar@, @collapse@, @for@, @meta@ (if installed), @metareg@ (if
+          installed), @metabias@ (if installed), @metacum@ (if installed), @galbr@ 
+          (if installed), metap (if installed), @hplot@ (if installed)
+