Syntax - Stata
For the Wilcoxon rank-sum test, there are two independent random variables, X 1 and X 2, and we test the null hypothesis that X 1 ˘X 2. We have a sample of size n 1 from X 1 and another of size n 2 from X 2. The data are then ranked without regard to the sample to which they belong. If the data are tied, averaged ranks are used.
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Syntax - Stata
www.stata.com2cluster kmeans and kmedians— Kmeans and kmedians cluster analysis Options Main k(#) is required and indicates that # groups are to be formed by the cluster analysis.
Syntax Description - Stata
www.stata.com2substr()— Extract substring Diagnostics In substr(s, b, l) and substr(s, b), if b describes a position before the beginning of the string or after the end, "" is returned.
Title stata.com generate — Create or change …
www.stata.comTitle stata.com generate — Create or change contents of variable SyntaxMenuDescriptionOptions Remarks and examplesMethods and formulasReferencesAlso see Syntax Create new variable generate type newvar
SyntaxDescriptionRemarks and examplesAlso see
www.stata.commacro— Macro definition and manipulation 3 Macro extended functions related to matrices rownamesjcolnamesjrowfullnamesjcolfullnames matname roweqjcoleq
Title stata.com graph box — Box plots
www.stata.comgraph box— Box plots 3 Menu Graphics > Box plot Syntax graph box yvars if in weight, options graph hbox yvars if in weight, options where yvars is a varlist options Description
Title stata
www.stata.comarea options — Options for specifying the look of special areas 3 Also see [G-2] graph dot — Dot charts (summary statistics)
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www.stata.com2cluster dendrogram— Dendrograms for hierarchical cluster analysis The height of the vertical lines and the range of the (dis)similarity axis give visual clues about the
Title stata.com putexcel — Export results to an Excel …
www.stata.computexcel— Export results to an Excel file 3 export options Description Main overwritefmt overwrite existing cell formatting when exporting new content
destring — Convert string variables to numeric ... - …
www.stata.comTitle stata.com destring — Convert string variables to numeric variables and vice versa SyntaxMenuDescription Options for destringOptions for tostringRemarks and …
Title stata.com gettoken — Low-level parsing
www.stata.comTitle stata.com gettoken — Low-level parsing SyntaxDescriptionOptionsRemarks and examplesAlso see Syntax gettoken emname1 emname2: emname3, parse("pchars") quotes qed(lmacname) match(lmacname) bind
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Cover 4/23/05 5:33 PM Page i
www.cmua.nlWilcoxon rank sum test (21) One-way ANOVA (22) Kruskal-Wallis test (22) test for a Sign test (23) Paired Chi-squared test (25) Chi-squared trend test (25) Independent McNemar’s test (24) Chi-squared test (24) Fisher’s exact test (24) *Relevant chapter numbers shown in parentheses. Flow chart for further analyses Regression methods