[R] Using ggplot2 to plot percentages in bar chart.
SWay at meco.com
Mon Dec 5 23:56:49 CET 2016
That’s precisely what I’m trying to accomplish.
Shawn Way, PE
From: John Kane [mailto:jrkrideau at yahoo.ca]
Sent: Monday, December 05, 2016 4:47 PM
To: Shawn Way <SWay at meco.com>; r-help at r-project.org
Subject: Re: [R] Using ggplot2 to plot percentages in bar chart.
I've never seen stat_bin used like that. What exactly is it supposed to do. It looks like you are trying to label the %ages in each piece of the bar.
On Monday, December 5, 2016 2:17 PM, Shawn Way <SWay at meco.com<mailto:SWay at meco.com>> wrote:
I have the following data in which I'm trying to summarize in a stacked bar plot showing the percentages as a label in the bar.
The data is as follows:
MASTERPAK2LT MASTERPAK4LT MASTERPAK7LT MASTERPAK10LT MASTERPAK22LT
1 X X X X X
2 C C C X X
3 C C C X X
4 U U X X X
5 <NA> U X X X
6 <NA> <NA> X <NA> <NA>
It is then transformed using dplyer:
> d2 <- data %>%
> head (d2)
Source: local data frame [6 x 4]
Groups: Model 
Model Status count perc
<chr> <chr> <int> <dbl>
1 MASTERPAK10LT C 8 0.21052632
2 MASTERPAK10LT X 29 0.76315789
3 MASTERPAK10LT <NA> 1 0.02631579
4 MASTERPAK22LT C 6 0.15789474
5 MASTERPAK22LT U 1 0.02631579
6 MASTERPAK22LT X 30 0.78947368
I then try to plot this using ggplot using
plt <- ggplot(d2,aes(x=Model,y= perc,fill=Status)) +
labs(y="Percent Complete") +
stat_bin(geom = "text",
scale_y_continuous(labels = percent)
but I get the error:
Error: stat_bin() must not be used with a y aesthetic.
When I leave out the stat_bin, I get the correct bar chart, but without the labels. Can someone please help me understand what is causing the error above?
Thank you kindly,
Shawn Way, PE
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