%corrdemoa
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  Animated Graphs of Correlation Coefficient

Description
  This macro creates animated gif files of scatter plots with different 
  correlation coefficients. For example, without any argument, simply 
  call the macro will create a gif file called corrdemoa.gif in 
  C:\temp directory. The correlation coefficients change from -1 to +1 
  by 0.1. The delay is set to be 25ms that controls how fast the gif 
  file changes each of its frame.  

Syntax

  %corrdemoa(out= ,lo= ,hi= ,inc= ,size= ,
            gopt= ,axis1= , axis2= , symbol= , plot= ,title= )

    out     - name of the gif file to be created, 
              the default is c:\temp\corrdemoa.gif
    lo      - the starting value for the correlation coefficient
    hi      - the ending value for the correlation coefficient
    inc     - the amount the correlation should increment by in
              each frame of the animation.
    size    - the size of the gif to be created
    gopt    - options for the "goptions" statement
    axis1   - options for the "axis1" statement (the x axis)
    axis2   - options for the "axis2" statement (the y axis)
    symbol  - options for the "symbol" statement
    plot    - options for the "plot" statement 
    title   - the title displayed at the top of the graph

Examples

  %corrdemoa

  %corrdemoa(out="c:\temp\corrdema.gif")

  %corrdemoa(out="c:\temp\corrdema.gif",
            title="Correlation Coefficient = &costr");

Author
  
  Xiao Chen
  Statistical Computing and Consulting
  UCLA Academic Technology Services

Also See

  Also see the web at 
    http://www.ats.ucla.edu/stat/sas/teach/corrrelation/corr.htm

  Also see the macro itself from 
    http://www.ats.ucla.edu/stat/sas/macros/corrdemoa.sas.txt