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Stata: Software for Statistics and Data Science | Stata
Statistics >Survival analysis >Regression models >Cox proportional hazards model Description stcox fits, via maximum likelihood, proportional hazards models on st data. stcox can be used with single- or multiple-record or single- or multiple-failure st data. Options Model estimate forces fitting of the null model.
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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.
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