stata程序 英文原版.doc

Lecture 1 - Table of Contents WelcomeEntering and executing a programMechanical method 1: The do-fileAside: Built in do-file editorMechanical method 2: the interactive program commandMechanical method 3: program in a do-fileMechanical method 4: combination do-filesMechanical method 5: ado files Aside: Using Stata and an editor or word processor Organizing do-filesAn individual do-fileA do-file to perform verificationInfiling data Aside: Working with datasets that are too large ReproducibilityIndexingassert as an alternative to branchingConsuming calculated resultsExercisesConclusionAppendix A: Sample data for hierarchical dataset exampleAppendix B: Sample data for relation example Welcome Welcome to NetCourse 151 -- An Introduction to Stata Programming. Before we get started there are a few things we need to get out of the way. In the NetCourse Basics message we showed those with a web-aware Stata how to use Stata to automatically download the important cutouts for each lecture. You will want to do that now for lecture 1. For instance, within Stata you would move to your course directory (using the cd command), create a directory for this lecture, and download the files. Here is what I did: . cd C:\nc151 . mkdir lecture1 . cd lecture1 . run /courses/nc151-8/lec1.do Reread the NetCourse Basics message for more details on this command. In this lecture we discuss How to enter a program and execute it Programming as automating data management and analysis The importance of organization, especially as it pertains to reproducibility The importance of data verification Simple data checks and debugging (assert and trace) Working with datasets that are too large to fit in memory Reading a hierarchical dataset Back to Table of Contents Entering and executing a program This is a course about programming Stata, but before we can get into the details of programming, you need to master the mechanics of programming. You need to learn how to enter a