Stata Reference Manual
Contents
1 Entering commands . . . . . . . . . . . . . . . . . . . . Page 1
2 Online help . . . . . . . . . . .. . . . . . . . . . . . . Page 1
3 Producing output . . . . . . . . . . . . . . . . . . . . . Page 1
4 The general syntax of Stata commands . . . . . . . . . . . Page 2
5 Typical errors and error messages . . . . . . . .. . . . . Page 2
6 Protection of files and data . . . . . . . . . . . . . . . Page 4
7 Data checking . . . . . . . . . . . . . . . . . . . . . . Page 5
8 The graph command . . . . . . . . . . . . . . . . . . . . Page 5
9 Stratification using by . . . . . . . . . . . .. . . . . . Page 6
10 Generating new variables .. . . . . . . . . . . . . . . . Page 6
11 Creating subsamples . . . . . . . . . . . . . . . . . . . Page 8
12 Making tables in Stata . . . . . . . . . . . . . . . . . Page 8
13 Categorization of variables . . . . . . . . . . . . . . . Page 10
14 Using Stata as a pocket calculator: The display command Page 12
15 Loops in Stata . . . . . . . . . . . . . . . . . . . . . Page 12
16 Working with do-files . . . . . . . . . . . . . . . . . . Page 13
17 Reshaping datasets . . . . . . . . . . . . . . . . . . . Page 14
18 Working with string variables . . . . . . . . . . . . . . Page 15
19 Labels . . . . . . . . . . . . . . . . . . . . . . .. . . Page 16
20 Switching between labels, strings and numbers . . . . . . Page 17
21 Creating variables with statistics . . . . . . . . . . . Page 19
22 Survival analysis commands . . . . . . . . . . . . . . . Page 21
23 Online facilities . . . . . . . . . . . . . . . . . . . . Page 22
24 How to find a statistical method . . . . . . . . . . . . Page 23

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