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ggplot2:::contour_breaks makes one bin less than expected #4003
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There are five bins in your example. In any case, there is a fix related to this issue in current master. #3976 library(ggplot2)
set.seed(1)
n=100
foo <- data.frame(x=rnorm(n, 0, 1), y=rnorm(n, 0, 1))
ggplot() +
stat_density_2d(data = foo, aes(x, y), bins = 5, color = "black", size = 3) +
geom_point(data = foo, aes(x = x, y = y), color = "red", size = .1) Created on 2020-05-15 by the reprex package (v0.3.0) |
@clauswilke Do you mean this tiny dot in the middle was indeed supposed to be a bin? |
What I forgot to say (my apologies)- Many thanks for your very prompt reply. Although already posted in the linked thread, I believe it is more appropriate to post this here. I kind of struggle to see the expected number of bins. Here using the example from the linked issue. library(ggplot2)
ggplot() +
geom_contour_filled(data = faithfuld, aes(waiting, eruptions, z = density), bins = 3, alpha = 0.5) +
stat_density_2d(data = faithful, aes(waiting, eruptions), bins = 3, color = "black", size = 1) Created on 2020-05-15 by the reprex package (v0.3.0) Session infodevtools::session_info()
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There seems to be a problem where the breaks are chosen awkwardly for library(ggplot2)
ggplot() +
geom_density_2d_filled(data = faithful, aes(waiting, eruptions), bins = 3, alpha = 0.5) +
geom_density_2d(data = faithful, aes(waiting, eruptions), bins = 3, color = "black", size = 1) Created on 2020-05-15 by the reprex package (v0.3.0) |
cheers for looking into that. I will open a new issue as requested |
Likely related, yet not quite the same: #3824
Following up on this Stackoverflow thread: https://stackoverflow.com/questions/61817440/follow-up-to-stat-contour-2d-bins-interpretation?noredirect=1#comment109350645_61817440
A previous version of ggplot2 3.2.1 seemed to have worked as expected with the correct number of bins.
This does make one bin less than expected:
Created on 2020-05-15 by the reprex package (v0.3.0)
The following fix results in expected behaviour:
in
ggplot2:::contour_breaks
, changing bins-1 to "bins" :Session info
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