Change density default bw = "nrd0" to bw = "sj"
#5854
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I'm not sure I think this is worth the breaking change to be honest... I probably miss a compelling example of when it would improve a visualisation |
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This PR aims to fix #3825.
Briefly,
?densityrecommends the"sj"method over the"nrd0"default. This change propagates that recommendation to ggplot2's density calculations.Some details:
calc_bw()andprecompute_bw()were doing the exact same task, so I merged these.var(x) == 0, most of thestats::bw.*()functions throw an error, so we keepbw.nrd0()for these degenerate cases because it will not throw an error.