The POWER Procedure
- Overview
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Getting Started
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Syntax
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Details
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ExamplesOne-Way ANOVAThe Sawtooth Power Function in Proportion AnalysesSimple AB/BA Crossover DesignsNoninferiority Test with Lognormal DataMultiple Regression and CorrelationComparing Two Survival CurvesConfidence Interval PrecisionCustomizing PlotsBinary Logistic Regression with Independent PredictorsWilcoxon-Mann-Whitney Test
- References
Computational Methods and Formulas
- Common Notation
- Analyses in the LOGISTIC Statement
- Analyses in the MULTREG Statement
- Analyses in the ONECORR Statement
- Analyses in the ONESAMPLEFREQ Statement
- Analyses in the ONESAMPLEMEANS Statement
- Analyses in the ONEWAYANOVA Statement
- Analyses in the PAIREDFREQ Statement
- Analyses in the PAIREDMEANS Statement
- Analyses in the TWOSAMPLEFREQ Statement
- Analyses in the TWOSAMPLEMEANS Statement
- Analyses in the TWOSAMPLESURVIVAL Statement
- Analyses in the TWOSAMPLEWILCOXON Statement
This section describes the approaches used in PROC POWER to compute power for each analysis. The first subsection defines some common notation. The following subsections describe the various power analyses, including discussions of the data, statistical test, and power formula for each analysis. Unless otherwise indicated, computed values for parameters besides power (for example, sample size) are obtained by solving power formulas for the desired parameters.