基于RON CODY 纵向数据和SAS编程课堂笔记（Notes and Handout),是可编辑的pdf文档
=Longitudinal Data and SAS
A PROGRAMMER’S GUIDE
RON CODY




Note 1 The RETAIN Statement.pdf
Note 2 The LAG and DIF Functions.pdf
Note 3 FIRST.and LAST.Temporary Variables.pdf
Note 4 Flags and Counters.pdf
Note 5 Summarizing Data Using PROC MEANS and PROC FREQ.pdf
Note 6 Using PROC SQL with Longitudinal Data.pdf
Note 7 Restructuring SAS Data Sets Using Arrays.pdf
Note 8 Restructuring SAS Data Sets Using PROC TRANSPOSE.pdf
Note 9 Study One-Operations on a Clinical Database.pdf
Note 10 Study Two-Operations on Daily Weather.pdf
Note 11 Study Three-Producing Summary.pdf
Note 12 Useful Macros.pdf

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