Should we compact facet grid specs?

[lionel-]

This would make it easier to program with facets.

From https://stackoverflow.com/questions/53218152/ggplot2-facet-grid-with-conditional-facets-and-tidy-evaluation

plot_iris <- function(df_in, facet_var = NULL){
  ggplot(df_in) +
    geom_point(aes(Sepal.Length, Sepal.Width)) +
    facet_grid(vars(!!enquo(facet_var)), vars(idx))
}

[hadley]

That would be consistent with tidyverse/design#24

[lock]

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