SAS生存時間解析プロシジャの 最新の機能拡張
phregプロシジャはcontrast，estimate， lsmeans，lsmestimate，hazardratio文で 柔軟な推測，共変量と多重性の双方を同時に調整し た多重比較も可能になった．またrandom文による 変量効果を用いた解析も可能になった． キーワード： lifetestプロシジャ， phregプロシジャ，
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