[R] testing slopes different than a given value

[John Fox]

Dear Manuel,

Take a look at the linear.hypothesis function in the car package.

I hope this helps,
 John

--------------------------------
John Fox
Department of Sociology
McMaster University
Hamilton, Ontario
Canada L8S 4M4
905-525-9140x23604
http://socserv.mcmaster.ca/jfox 
-------------------------------- 

> -----Original Message-----
> From: r-help-bounces at stat.math.ethz.ch 
> [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Manuel 
> Gutierrez
> Sent: Thursday, February 10, 2005 1:36 PM
> To: r-help at stat.math.ethz.ch
> Subject: [R] testing slopes different than a given value
> 
> In a multiple linear regression with two independent 
> variables is there any function in R to test for the 
> coefficients being different than some given values?
> Example:
> x1<-rnorm(100)
> x2<-rnorm(100)
> y<-3+0.6*x1+0.3*x2
> lm(y~x1+x2)
> Obtain a test for the coefficients for x1 being different 
> than 0.6 and for x2 different than 0.3 Thanks Manuel
> 
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