%corrdemo
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  Demo on Correlation Coefficient

Description

  Shows scatterplot and correlation for a given data file.

Syntax

  %corrdemo(corr= , size=, outfile=' ', data= , dev= ,
            title= ,axis1=, axis2=, symbol=, plot=); 

    corr    - draw a sample from a population with a correlation
              of this size.
    size    - the sample size, how many pairs to draw
    outfile - saves the graph as a .gif file with the given name
    dev     - specifies the device used for saving the graph, which
              determines the size of the graph
    title   - the title displayed at the top of the graph
    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 

Examples

  %corrdemo
  
  %corrdemo(size=500, corr=0.9)

  %corrdemo(size=500, corr=0.9, outfile="c:\temp\corr9.gif")

  %corrdemo(size=500, corr=0.7, outfile="c:\temp\corr7.gif", symbol = i=r)

  %corrdemo(size=200, corr=-0.70, outfile="c:\temp\whatcorr.gif", 
            title="What is the Correlation Coefficient?")  

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/corrdemo.sas.txt