Hi All
I am running a linear regression using the lm object.
In the event that my independent variable is the same across all
observations the regression slope is returned as an NA.
For example, if I have the following
y=c(10,12,17)
x=c(5,5,5)
lm = lm(y~x)
produces the following
Coefficients:
(Intercept) x
13 NA
Other than post-processing the results, is there a way to output the
slope as 0 rather than NA?
Thanks
Pete
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