Hi Richard
You are trying to compare two models, that are not nested. This means
that all usual asymptotics of the test statistics break down, hence
the (second) test you are attempting is not meaningful. Usually one
decides on the form of the response on other grounds such as residual
analysis or
Hi All,
I'm accustomed to performing an ANOVA to aid in choosing between
linear models (for example y~x or y~x+x^2), however with different
models I can't seem to do it. I'm trying to fit an exponential model
of the form ye^(bt).
Below is a code snippet that highlights what I'm trying to do
s =
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