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stat_summary error when missing ymin/ymax in facet #1445

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tpall opened this Issue Dec 22, 2015 · 3 comments

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@tpall

tpall commented Dec 22, 2015

stat_summary gives error with ggplot2_2.0.0 when missing data for ymin/ymax in at least one facet to calculate errorbars/pointrange.
ggplot2 1.0.1 robustly plotted just points without bars in such facet.

Taavi

Minimal example:

library(ggplot2)
library(dplyr)
mtcars %>% 
   group_by(gear, cyl) %>%
   summarise(hp = mean(hp)) %>%
   ggplot(aes(gear, hp)) + 
   stat_summary(fun.data = mean_se, geom = "pointrange") +
   facet_wrap(~cyl)
Error in FUN(X[[i]], ...) : subscript out of bounds
In addition: Warning message:
Removed 8 rows containing missing values (geom_pointrange). 

@tpall tpall changed the title from stat_summary error when single value to calculate errorbar to stat_summary error when missing ymin/ymax in facet Jan 4, 2016

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hadley commented Jan 26, 2016

More minimal reprex:

df <- data.frame(x = c(1, 2, 1), y = c(2, 2, 2), g = c(1, 1, 2), se = c(1, 1, NA))

ggplot(df, aes(x, y)) + 
  stat_summary(fun.data = mean_se, geom = "pointrange") +
  facet_wrap(~g)

@hadley hadley closed this in 5023b79 Jan 26, 2016

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hadley commented Jan 26, 2016

This eliminates the error, but I'm not sure if this is what you expected. Did pointrange use to display just the points if ymin/ymax were missing?

@tpall

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tpall commented Jan 27, 2016

I am happy, my code produces a plot again. Error appeared after upgrade
when I reused my stat_summary line/errorbar plot on a dataset where
errorbars could not be calculated for none of the x value (N=1),
originally, just line was displayed. After upgrade, completely missing
ymin/ymax produced error.

Taavi

On Tue, Jan 26, 2016 at 3:56 PM, Hadley Wickham notifications@github.com
wrote:

This eliminates the error, but I'm not sure if this is what you expected.
Did pointrange use to display just the points if ymin/ymax were missing?


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