Purpose: The purpose of this program is to display an F-distribution for the number of degrees of freedom specified by the user.
Download: You can download this program from within Stata by typing search fdemo (see How can I used the search command to search for programs and get additional help? for more information about using search).
Use of program: To use this program, type fdemo df1 df2 in the Stata command window. This opens a Stata graph window showing an F-distribution with degrees of freedom equal to df1 and df2.
Examples: The following shows the output from issuing the fdemo command with degrees of freedom 3 and 10.
. fdemo 3 10
The next example adds an alpha of .01.
. fdemo 3 10 .01