Contour removes duplicates #5243
Merged
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This PR aims to fix #5215.
Briefly,
stat_contour()
andstat_contour_filled()
will now remove duplicated x,y positions with a warning.Duplicate values were already implicitly removed here:
ggplot2/R/stat-contour.R
Lines 250 to 251 in 962fb74
This PR just does it explicitly, compatible with the previous implicit method, and warns the user.