[R] Standardized beta-coefficients in regression

Dr. Walter H. Schreiber whschreiber at onlinehome.de
Mon Jan 16 17:24:24 CET 2006

Hello list,

I am used to give a lot of attention to the standardized regression 
coefficients, which in SPSS are listed automatically. 

Is there alternative to running the last two lines in the following example to 
get all the information?

ctl <- c(4.17,5.58,5.18,6.11,4.50,4.61,5.17,4.53,5.33,5.14)
trt <- c(4.81,4.17,4.41,3.59,5.87,3.83,6.03,4.89,4.32,4.69)
summary( lm(ctl ~ trt) )
summary( lm(scale(ctl) ~ scale(trt)) )

Any hints are appreciated.


Dr. Walter H. Schreiber
Dept. of Psychology
University of Koblenz-Landau

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