|
|
|
||||
|
|
|||||
Purpose: The purpose of this program is to display a matrix of squared correlation coefficients to help students to learn to interpret correlations.
Examples:
use http://www.ats.ucla.edu/stat/stata/notes3/hsb2, clear
corr read write math science socst
(obs=200)
| read write math science socst
-------------+---------------------------------------------
read | 1.0000
write | 0.5968 1.0000
math | 0.6623 0.6174 1.0000
science | 0.6302 0.5704 0.6307 1.0000
socst | 0.6215 0.6048 0.5445 0.4651 1.0000
corrsq
Squared Correlation Coefficients
read write math science socst
read 1
write .35614217 1
math .43861496 .38124359 1
science .39709894 .32540366 .39782432 1
socst .3862427 .36577484 .2964588 .2163236 1
/* user entered correlation matrix */
matrix R = (1,.2,.6\.2,1,.4\.6,.4,1)
matrix list R
symmetric R[3,3]
c1 c2 c3
r1 1
r2 .2 1
r3 .6 .4 1
corrsq , matrix(R)
Squared Correlation Coefficients
c1 c2 c3
r1 1
r2 .04 1
r3 .36 .16 1
UCLA Researchers are invited to our Statistical Consulting Services
We recommend others to our list of Other Resources for Statistical Computing Help
These pages are Copyrighted (c) by UCLA Academic Technology Services