By accident I came across the following example:
x <- 1:3
y <- 1:3
line(x, y) # returns:
Call:
line(x, x)
Coefficients:
[1] -2 2
While when using 1:4, it will give the more reasonable 0,1 coefficients.
I imagine this is in the way it calculate the quantiles (i.e.: a "feature").
Can someone help in explaining this?
Thanks,
Tal
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