[R] how fit linear model with fixed slope?

[Dimitris Rizopoulos]

yes, you can use an offset, e.g.,

x <- runif(100, -3, 3)
y <- 2 + x + rnorm(100)

lm(y ~ x)
lm(y ~ offset(x))


I hope it helps.

Best,
Dimitris


On 10/22/2010 4:13 PM, Czerminski, Ryszard wrote:
> I want to fit a linear model with fixed slope e.g. y = x + b
> (instead of general: y = a*x + b)
>
> Is it possible to do with lm()?
>
> Regards,
> Ryszard
>
>
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-- 
Dimitris Rizopoulos
Assistant Professor
Department of Biostatistics
Erasmus University Medical Center

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