nolta/Winston.jl — pull request #118 by jverzani (2014-01-14 15:33:35+00:00)
Title: adjust evalrule

This is better behavior for segments which return all NaN then throwing an error which, as is, prevents plotting of functions like `x -> cos(x) > 0 ? 0.0 : NaN` (used to emphasize where something is positive).