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Would be nice to have geom_step not throw in non renderable situations #1645
It would be nice to have geom_step not throw in non renderable situations. It would be an improvement if the following code:
issued a warning and draws a graph like geom_line does in:
instead of erroring-out with the message "invalid line type" (as Cran current ggplot2 2.1.0 does). One can easily run into this when using geom_step with facet_wrap.
I have an article explaining the actual use case here https://github.com/WinVector/Examples/blob/master/UsingGeomStep/UsingGeomStep.md and the small example here https://github.com/WinVector/Examples/blob/master/UsingGeomStep/StepThrow.md .