Unhelpful error when `facet = FALSE, facet.args = list(free = TRUE)`

[katrinabrock]

MRE

library(tinyplot)

aq = transform(
  airquality,
  Month = factor(month.abb[Month], levels = month.abb[5:9]),
  hot = ifelse(Temp >= 75, "hot", "cold"),
  windy = ifelse(Wind >= 15, "windy", "calm")
)

tinyplot(
  Temp ~ Day,
  data = aq,
  facet.args = list(free = TRUE),
)

Expected behavior

Silently ignore facet args. (This is what happens when other facet args are specified in this situation.)

Actual behavior

Error in split.default(c(x, xmin, xmax), facet) : 
  group length is 0 but data length > 0

[zeileis]

Thanks, Brock @katrinabrock, much appreciated. I think it is easiest to just use the full data in the case without facets. I have suggested this now in PR #554