R help - Oct 2007 - Linear regression and slope from 1

Dear R-Users,

I am new to R, so please excuse the ignorance.

I have data:
x (2.14, 2.41, 1.09, 0.17, 8.18)
y (3.81, 5.13, 0.63, 0.75, 6.35)

I would like to use simple linear regression and test 2 things:
1) slope of line of best fit is statistically different from 1
2) y-intercept is statically different from 0

Could anyone provide me with the R terminology to do this?

Thanks so much,
Dan


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ilnews
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Dan-157 wrote:
> 
> 
> Dear R-Users,
> 
> I am new to R, so please excuse the ignorance.
> 
> I have data:
> x (2.14, 2.41, 1.09, 0.17, 8.18)
> y (3.81, 5.13, 0.63, 0.75, 6.35)
> 
> I would like to use simple linear regression and test 2 things:
> 1) slope of line of best fit is statistically different from 1
> 2) y-intercept is statically different from 0
> 
x <- c(2.14, 2.41, 1.09, 0.17, 8.18)
y <- c(3.81, 5.13, 0.63, 0.75, 6.35) 

lm(y~x)    ## regular regression
L1 <- lm(y~x+offset(x))  ## regression, tested vs slope=1
summary(L1)

  Ben Bolker

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From: daniel guertin <danguertin at hotmail.com>
Subject: [R] Linear regression and slope from 1
Date: Mon, 15 Oct 2007 23:47:40 +0000

library(car)
?linear.hypothesis

Hope this is what you wanted.
> 
> Dear R-Users,
> 
> I am new to R, so please excuse the ignorance.
> 
> I have data:
> x (2.14, 2.41, 1.09, 0.17, 8.18)
> y (3.81, 5.13, 0.63, 0.75, 6.35)
> 
> I would like to use simple linear regression and test 2 things:
> 1) slope of line of best fit is statistically different from 1
> 2) y-intercept is statically different from 0
> 
> Could anyone provide me with the R terminology to do this?
> 
> Thanks so much,
> Dan
> 
> 
> _________________________________________________________________
> [[replacing trailing spam]]
> 
> ilnews
> 	[[alternative HTML version deleted]]
> 
>