Walk-forward, out of sample: is the forecast worth quoting? The same harness arch fits were graded with before this package replaced them.
arch
Readonly
The last in-sample index; the train window is [0, origin].
[origin + 1, origin + horizon], always exactly horizon long.
horizon
Walk-forward, out of sample: is the forecast worth quoting? The same harness
archfits were graded with before this package replaced them.