Introduction to STATA 10.0：The Beginners Manual.doc

Introduction to STATA 10.0 The Beginners Manual Originally provided by Prof. Woochan Kim Chapter 1. Start STATA Run STATA Double click the ‘STATA 10.0’ icon in the Window. Define Directory . cd Show the current directory. . cd c:\mydata Change the directory to the one where you will save the data and output files. Create Output File (LOG File) . capture log close Close log files, if any, currently open. . log using c:\stata10\mylog, text Create a new log file on the directory c:\stata10 under the file name ‘mylog’ in ‘text’ format (mylog.txt). A log file saves all results (including STATA commands you have used) for review. You can copy and paste the results directly from the STATA window or open it using either Notepad or MSWord. . log using c:\stata10\mylog, text replace Replace the old log file, ‘mylog’, saved already with the updated one under the same log file name. . log close Close the current log file. Any commands and results are saved in the log file, ‘mylog’, before closing. . log off Temporarily stop the log file. . log on Restart the log file. Create Command File (DO File) Open do-file editor Type in commands that you want to execute sysuse auto, clear log using c:\stata10\mylog1, text reg mpg length weight foreign sort foreign by foreign: reg mpg length weight foreign log close Save the file with an extension “do.” For example, c:\stata10\mydo.do . do c:\stata10\mydo.do (or run c:\stata10\mydo.do) Execute the do file, ‘mydo’. Run is different in that it does not display the execution on the screen Use “do” instead of “run” when generating a log file Chapter 2. Data Input There are three ways to enter data into STATA. Load a data set . use smoke.dta, clear Load the dataset ‘smoke.dta’ (which should be saved in a STATA-format) in the memory and clear other data in use from the memory. Data in an Excel format Copy the selected cells in Excel, open the STATA editor, place the cursor on the cell that will be the upper left corner, and paste. T