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Log-Rank检验是各组生存率的整体比较 Log-Rank检验是各组生存率各个时间点的比较 Log-Rank检验近似法较精确法保守 Log-Rank检验中,各组实际死亡数之和必等于理论死亡数之和 Log-Rank检验的自由度为(组数-1)
log-rank检验是各组生存率的整体比较 log-rank检验是各组生存率各个时间点的比较 log-rank检验近似法较精确法保守 log-rank检验中,各组实际死亡数之和必等于理论死亡数之和 log-rank检验的自由度为(组数-1)
logab·logcb=logca logab·logca=logcb loga(bc)=logab·logac loga(b+c)=logab+logac
log0.52.7>log0.52.8 log34>log65 log34>log56 logπe>logeπ
(0.7)60.76<60.7 (0.7)6<60.70.76 log0.76<60.7<(0.7)6 log0.76<(0.7)6<60.7
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log23.424.3 log67>log76 log0.23>log0.33 log3π0.3π
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