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相关主题
● longitudinal vs repeated measures vs time series	● What kind of study is this?
● SAS base question	● I485和I765交了,但工作快没了。求统计工作内推!
● 问一个data subset的问题	● A SAS problem
● SAS sampling的问题	● [合集] SAS里如何实现LOCF(LAST OBS CARRIED FORWARD)?
● 求教 SAS base 123 Q 16	● [合集] 初级傻问题，莫笑
● 要面试了，请问实际工作中large data set都是存在那里的？	● in =option的一道题
● SAS CODE求助	● Ask a SAS Base question?
● 请教 Longitudinal Data	● [合集] 请教一个sas问题

相关话题的讨论汇总
话题: dataset话题: each话题: know

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a********a 发帖数: 346	1 I have a longitudinal dataset, each ID may have different observations. How can I know easily how many times each ID appear? For example, the dataset like: ID 1 1 1 2 2 3 3 3 3 I want to know ID count 1 3 2 2 3 4 Thanks a lot.
O*****y 发帖数: 222	2 table(ID) How 【在 a********a 的大作中提到】 : I have a longitudinal dataset, each ID may have different observations. How : can I know easily how many times each ID appear? For example, the dataset : like: : ID : 1 : 1 : 1 : 2 : 2 : 3
a********a 发帖数: 346	3 thanks

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相关主题
● [合集] 请教一个sas问题	● 求教 SAS base 123 Q 16
● 求问一道SAS adv 题	● 要面试了，请问实际工作中large data set都是存在那里的？
● 请教一个问题	● SAS CODE求助
● SAS应用问题	● 请教 Longitudinal Data
● longitudinal vs repeated measures vs time series	● What kind of study is this?
● SAS base question	● I485和I765交了,但工作快没了。求统计工作内推!
● 问一个data subset的问题	● A SAS problem
● SAS sampling的问题	● [合集] SAS里如何实现LOCF(LAST OBS CARRIED FORWARD)?

相关话题的讨论汇总
话题: dataset话题: each话题: know

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