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Listof tables xxxv
Listof figures xxxvii
Preface xxxix
1 Stata basics 1
1.1 Interactive use 1
1.2 Documentation 2
1.2.1 Stata manuals 2
1.2.2 Additional Stata resources 3
1.2.3 The help command 3
1.2.4 The search, findit, and hsearchcommands 4
1.3 Command syntax and operators 5
1.3.1 Basic command syntax 5
1.3.2 Example: The summarize command 6
1.3.3 Example: The regress command 7
1.3.4 Abbreviations, casesensitivity, and wildcards 9
1.3.5 Arithmetic, relational, and logical operators 9
1.3.6 Error messages 10
1.4 Do-files and log files 10
1.4.1 Writing a do-file ?. . . 10
1.4.2 Running do-files 11
1.4.3 Log files 12
1.4.4 A three-step process . . : 13
1.4.5 Comments and long lines 13
1.4.6 Different implementations ofStata 14
1.5 Scalars and matrices........................................................................................ 15
1.5.1 Scalars................................................................................................ 15
1.5.2 Matrices.............................................................................................. 15
1.6 Using results from Stata commands................................................................... 16
1.6.1 Using results from the r-classcommand summarize 16
1.6.2 Using results from the e-classcommand regress 17
1.7 Global and local macros................................................................................. 19
1.7.1 Global macros................................................................................... 19
1.7.2 Local macros ................................................................................... 20
1.7.3 Scalar or macro?.............................................................. 21
1.8 Looping commands......................................................................................... 22
1.8.1 The foreach loop ............................................................................ 23
1.8.2 The forvalues loop ......................................................................... 23
1.8.3 The while loop 24-
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