[R] Linear Regression

Ben Bolker bolker at ufl.edu
Fri Oct 5 14:56:03 CEST 2007




livia wrote:
> 
> Hello,
> 
> I am performing a multiple linear regression, is there a way of get the
> mean and standard error of the response variable?
> 
> Could anyone give me some advice? Many thanks.
> 

You may need to give us more information/express your request more clearly. 
Two
answers I can think of (if your model is LM1 = lm(z~x+y)) are

mean(z)
sd(z)/sqrt(length(z))

or

predict(LM1,se.fit=TRUE)

  Ben Bolker
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