On 16/05/2008, at 9:44 AM, Charilaos Skiadas wrote:
This is exactly why we asked you for a reproducible example and
full code. That last entry in the V6 column is 69.65667 in this
case, but 66.27667 in the other cases. So you clearly are working
with two slightly different dodgy files, and consequently two
slightly different dubious data sets, and lm rightfully produces
two slightly different accurate coefficients.
Well spotted!!! I stared and stared and was flummoxed as to what
was going on.
Good eyes!
cheers,
Rolf Turner
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