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These functions are used on ggplot2 objects or as layers when building a ggplot2 object, and to facilitate use of gridExtra. colorFacet colors the thin rectangles used to separate panels created by facet_grid (and probably by facet_wrap). A better approach may be found at https://stackoverflow.com/questions/28652284/. arrGrob is a front-end to gridExtra::arrangeGrob that allows for proper printing. See https://stackoverflow.com/questions/29062766/store-output-from-gridextragrid-arrange-into-an-object/. The arrGrob print method calls grid::grid.draw.
ggplot2
gridExtra
colorFacet
facet_grid
facet_wrap
arrGrob
gridExtra::arrangeGrob
print
grid::grid.draw
colorFacet(g, col = adjustcolor("blue", alpha.f = 0.3))arrGrob(...)# S3 method for arrGrob print(x, ...)
arrGrob(...)
# S3 method for arrGrob print(x, ...)
a ggplot2 object that used faceting
color for facet separator rectanges
passed to arrangeGrob
arrangeGrob
an object created by arrGrob
Sandy Muspratt
if (FALSE) { require(ggplot2) s <- summaryP(age + sex ~ region + treatment) colorFacet(ggplot(s)) # prints directly # arrGrob is called by rms::ggplot.Predict and others }
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