sas 学习经典书籍 SAS System Concepts Chapter 1. . . . . . . . . .Essential Concepts of Base SAS Software 3 Chapter 2. . . . . . . . . .SAS Processing 11 Chapter 3. . . . . . . . . .Rules for Words and Names in the SAS Language 15 Chapter 4. . . . . . . . . .SAS Language Elements 23 Chapter 5. . . . . . . . . .SAS Variables 77 Chapter 6. . . . . . . . . .Missing Values 101 Chapter 7. . . . . . . . . .Expressions 109 Chapter 8. . . . . . . . . .Dates, Times, and Intervals 127 Chapter 9. . . . . . . . . .Error Processing and Debugging 147 Chapter 10. . . . . . . . .SAS Output 161 Chapter 11. . . . . . . . .BY-Group Processing in SAS Programs 193 Chapter 12. . . . . . . . .WHERE-Expression Processing 195 Chapter 13. . . . . . . . .Optimizing System Performance 211 Chapter 14. . . . . . . . .Support for Parallel Processing 221 Chapter 15. . . . . . . . .Monitoring Performance Using Application Response Measurement (ARM) 223





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