JuliaStats / GLM.jl / 866

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travis-ci

ftest improvements (#337)

Allow passing models from simpler to more complex, giving equivalent tests but with
reversed signs for ΔDOF, ΔSSR and ΔR².
Deprecate passing only one model, which makes no test at all.
Stop printing residual degrees of freedom, as DOF and difference in DOF seems enough.
Print two spaces instead of one between columns to make table more readable, and add
horizontal lines to match the CoefTable printing.
Make struct type stable by filling tuples with an initial NaN entry when needed.
Make tests cover more situations by having a model with ΔDOF of 2.
Small code improvements.

33 of 33 new or added lines in 1 file covered. (100.0%)

369 of 531 relevant lines covered (69.49%)

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