→ kingbee:能說哪一篇文獻呢? 06/16 18:07
→ kingbee:proc lifereg or lifetest ? 06/16 18:07
→ bmka:Use Greenwood's formula (or other approximations) to 06/16 21:47
→ bmka:approximate the variance of Kaplan-Meier estimator. 06/16 21:48
→ bmka:A test statistic can be obtained by comparing the K-M 06/16 21:49
→ bmka:estimates of two groups at a fixed time point. 06/16 21:49
→ qtzbbztq:感謝樓上 可以請您告訴我greenwood 這個方法在sas該用 06/16 22:47
→ qtzbbztq:什麼程式語言嗎 我搜尋了一下SAS HELP沒看到 謝謝您 06/16 22:47
→ bmka:You may just use SAS to calculate the K-M estimator 06/17 10:14
→ bmka:and print out the corresponding standard error at each 06/17 10:15
→ bmka:time point.You may then calculate the value of the 06/17 10:15
→ bmka:aforementioned test statistic. 06/17 10:16
→ qtzbbztq:謝謝!!非常感謝 06/17 13:29