[Stata 12 Free Download For Windows
Jamar Lizarraga
In Stata, the Results window holds up to 32000 bytes of information (output), after that, older output at the top of thebuffer is replaced by new output when it appears at the bottom of the Results window. You may want to increase the size of the scrollbuffer so that output is retained for longer. On all platforms you can change the scroll buffer size using the command line. In windows, you also have the option of using the menus.
When the General Preferences dialog box appears you will need to move from the Result Colors tab to the Windowing tab. At the top of the Windowing tab isthe option to change the size of the scrollback buffer, increase thisvalue to increase the amount of output that accumulates in the buffer ofthe Results Window.
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Full-screen mode. To run Stata interactively in full-screen mode, you must be connected to Strauss using an X-Window server such as a SunRay, a UNIX workstation, or software such as Xming or Cygwin.
The Results window may be difficult to read, as illustrated by the previous image. You may customize its appearance by clicking Edit/Preferences/General/Preferences/Results. Change "Color scheme:" from "Black background" to "White background" and change the font to Courier New, point size 12 as shown below:
The upper-left pane displays the Stata commands that were entered in the editor (lower-right pane). The lower-left pane lists the variable names, and the Stata Results pane (upper-right, black background) displays the output.
substituting the name of your file for filename. The text option is required to get a plain text file that formats properly in a text editor such as pico or vim. The log file will be named filename.log.
The -b do flag indicates a batch run. The do keyword tells Stata to execute the commands in the file named after it, (mpgtest.do, in this example). Stata assumes an extension of .do if you omit that part of the filename. The output is saved in a file called mpgtest.log because the input file is named mpgtest.do.
This gives complete control over the names of your command files and output files. Its disadvantage is that you cannot use a command delimiter (e.g., ";") which allows you to type a single long Stata command over several lines in the command file. This is discussed further below.
Plots are not automatically displayed on the terminal screen when running batch stata. You can display a plot saved during a batch run using a UNIX viewer such as ghostview or xv. For example, this command file ends with a Stata shell command to display the plot using the UNIX application named xv. Note that the xv program requires use of an X-Window connection to Strauss.
An important component of data analysis is graphing. Stata provides excellent graphics facility for quickly exploring and visualizing your data. For example, let's load the auto data set that comes with Stata (1978 Automobile Data) and make two scatterplots and then two boxplots:
If you open Stata and run those commands, you'll notice each new graph overwrites the previous graph. In fact if you submit all five lines from a do file (ie, highlight all lines and click Ctrl + D), you'll only see the last box plot. That's annoying if you want to see multiple graphs at the same time. This is where naming your graphs comes in handy.
Now the graph is saved in memory and accessible by the name sp1. (There's nothing special about the name sp1. We just made it up. We could have named it price_vs_mpg or blah. Name your graph whatever you want. Just make sure there are no spaces in the name.) If you close the graph, you can access it again using the syntax graph display sp1. Now that's not a terribly big deal since you could also just resubmit the original syntax to see the graph again. But it is a big deal when you have multiple graphs that you would like to view at the same time.
Now both graphs are displayed. The second graph didn't overwrite the first! (In Windows you may have to move the 2nd graph to see the 1st one.) As long as we keep naming subsequent graphs, they will appear in their own window. Let's name our box plots:
"But I hate having all those Graph windows open!" No worries. Stata offers the autotabgraphs option so all graphs appear in one window with multiple tabs. Before we demonstrate, we'll close the four Graph windows as follows:
We get an error. You can't overwrite a named graph in memory. To see the graph, you have two options. (1) You can drop the sp1 graph from memory using drop graph sp1 and then reissue the original graphing syntax, or (2) you can issue the command graph display sp1 to view the saved graph.
In the single window we can't compare graphs side-by-side, but we can easily switch between the graphs using Ctrl + Tab. Again, this is all thanks to naming our graphs. Having autotabgraphs turned on only produces multiple graphs in one window if you name your graphs! Otherwise each new graph overwrites the previous one.
The toolbar contains a number of useful commands. While this is not the only way to access these commands, it is the fastest. The Stata toolbar contains shortcuts to the following, unless otherwise indicated, simply click the icon to achieve the effect.
The first option on the toolbar is for opening various types of documents. Clicking and holding this button will show you the last few data files opened, allowing you to choose one to open again. Clicking once on this button will open a standard file opening dialogue. This will allow you to browse your computer and choose what file to open. By default, Stata enables Stata data files, but you can also open do files or Stata graphs by changing which type of file is enable in the File Format field of the Open window.
The third option on the toolbar is for printing. Clicking and holding will list every open window that can be printed. Clicking once will open a print dialogue for whichever window you are currently in.
The fourth option on the toolbar deals with Stata's log. A Stata log file contains a list of every command and result with occurred while logging was turned on. It is a very useful thing to have. To begin logging simply click the log button and select Begin... You will be prompted to name your log file and save it to a location.
The fifth option on the toolbar will open up a Viewer window or bring it to the front. The Viewer window is a useful way to access help files. You can do this by typing relevant words into the search box next to the magnifying glass or typing a command into the box next to the Find button.
The seventh button allows you to edit your do file. Clicking will create a new do file and bring it to the front. Clicking and holding will show a list of your currently open do files and allow you to pick one. Do files are usually lists of commands that Stata can then execute in order. To learn more about do files see their specific help page.
The ninth button also opens the active data file. However, unlike the editor, the browser does not allow you to alter the data. Thus it is useful and safer in situations where you just want to look at something in your data.
The last button will cancel a command. So, if I inputted the wrong command, I could hit this button and it would be just like having never issued the command. Note that this is not an undo button and will only cancel a command that is still running. Also note that it is mostly useful if the command has a long enough output that -more- is displayed. Otherwise you won't cancel it fast enough. Using the X button, shows up as -Break- in red in the Results window and is not included in the Review window.
Often it is easier to use the second method, which allows you to change Stata's working directory to wherever you want. To do this go in the File => Change Working Directory and browse to where your files are located.
Assuming you have lots of folders of lots of data, an easy way to make sure Stata is always looking where you want it to look is to keep a blank .do file in the same folder as the data. Do files automatically open in Stata and a blank one will not alter anything. Then you can just open the blank .do, launching Stata and ensuring you are working in the right directory. See below for more information.
Below the toolbar is the Review window. Every command that Stata runs (whether or not it works) will appear in this list. Usefully, you can click on any command in the Review to put it in your Command window. Additionally, double-clicking a command in the Review window will run it again. You can save the Review window like any other file and use it as a record of what you've done or how you did it.
To the right of these two windows is the Results window. As the name suggests, the results of your analyses (except graphs) will show up in this window. Also any errors that prevent a command from running will show up here as well. Anything that shows up in blue is a clickable link, which can be useful for figuring out what a particular error message means. Yellow will be used for numbers and green for basically everything else.
To the right of the Results window is the Variables window, which will be blank until you load a data file. It displays your variables, labels and storage types. Clicking on a variable name will make it appear in the Command window.
The Properties window at the bottom right allows you to manage and edit your variables easily. When you select one of your variables in the Variables window, its properties will appear in this window, allowing you to view and edit its name, label, value label, note, format, and storage type.
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