STATA 11 for Windows SAMPLE SESSION - Food Security Group ...

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Stata 11 Sample Session Section 1 - Basic functions: Files, Descriptives, Data Transformations corresponds to this table is c-q1a.dta. To open this file, perform the following steps: Opening a data file: The use command 1. From the File menu, select Open... This will open the Open File dialog box. 2. If you have run the “cd” command you should see a list of data files to be used with this tutorial. Select the file c-q1a.dta. 3. Click on the Open button to open the file. The command appears in the Review window. In the Review Window you will see the text use "….\c-q1a.dta", clear “….” will be replaced with whatever the name of the directory is where you are working. 4. We want to create a do-file to save our commands. The command that was just executed appears in the Results window and the Review window. Press . The command which was just run now appears in the Command window. Block the command and press ) to copy it. Click on the button in the Tool Bar to open the Do-File Editor and paste the command into this file (). 5. We want to copy the “cd” command as well. Use the key until the “cd” command is in the Command window. Copy and paste it just above the “use” command. We also want to add comments to define what the purpose of the do-file. Above the commands that you just pasted, insert some lines. You can type: /* session 1 - basic functions, descriptives */ /* “your name here” - “the current date here” */ (example: /* beaver – 5 Jan 2009 */) /* member level file */ Other commands that are important and should be included are command to close any log file that may be open, clear the memory work space and drop all macro variables. An example of the commands that should be added to the do-file are: /* change to directory where files are stored*/ cd "C:\Documents and Settings\aec_user\My Documents\StataTraining\data" 20
Stata 11 Sample Session Section 1 - Basic functions: Files, Descriptives, Data Transformations Describing the contents of a data file: The describe command * define the log file to capture output * name of log file is “log_session1” capture log close log using log_session1, replace /* Purpose of do-file */ /* Author and date */ /* Tasks to be done in this do-file */ /*program setup */ version 11 clear all macro drop _all 6. Save the do-file. From the File menu in Do-File Editor select Save As... 7. Enter the filename session1 The .do extension will be added to the name automatically. 8. Click on Save. The do-file is now saved to disk. We need to run all the commands from the do-file to start the log and record the commands in the log file. Block all the commands and click on the Do button We have opened the household-member data file which is now the current file in memory. Stata only allows one file to be open at a time. A key piece of information we need to know about a data file is what variables it contains. We can find this out, along with other information, by using the Describe data command on the Data menu: 1. From the Data menu select Describe data... 2. There are several choices under this option: Select Describe data in memory. A dialog box opens: There are several options in this dialog box. 21
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STATA 11 for Windows SAMPLE SESSION - Food Security Group ...

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