【求助】PARMER的生存曲线取HR的方法中，time interval如何设定？
这个帖子发布于 14 年零 247 天前，其中的信息可能已发生改变或有所发展。
:~):~)parmer文献中曲线取HR的部分看得头大，一点始终搞不明白，他的example中如何设定time interval的。这里把它说的设定time interval的方法贴出来，大家讨论
“The choice of length of time intervals is an important component to this approach. For the best results the time intervals should be chosen such that the event rate within the interval is relatively small. As a rule of thumb, it is suggested that the event rate within each time interval is no more than 20 per cent of those at the beginning of the time interval, although of course this may not always be possible. ”/
是这意思吗，假如某一时间点，之后的死亡数量是100，这时的interval内死亡数量不能大于20？
另外，各位从curve中统计HR的时候，都是像它那个example一样列出那么大一个表吗，并且还是手动分析一个个曲线上的点所在位置，经过手动计算，形成表格，再手动计算形成lnHR(t)，再计算HR总和？？这样光分析一个曲线就工作量大的惊人了
“The choice of length of time intervals is an important component to this approach. For the best results the time intervals should be chosen such that the event rate within the interval is relatively small. As a rule of thumb, it is suggested that the event rate within each time interval is no more than 20 per cent of those at the beginning of the time interval, although of course this may not always be possible. ”/
是这意思吗，假如某一时间点，之后的死亡数量是100，这时的interval内死亡数量不能大于20？
另外，各位从curve中统计HR的时候，都是像它那个example一样列出那么大一个表吗，并且还是手动分析一个个曲线上的点所在位置，经过手动计算，形成表格，再手动计算形成lnHR(t)，再计算HR总和？？这样光分析一个曲线就工作量大的惊人了
