Ordering of bars in ggplot
I have looked through the answers in this forum but cannot seem to find an answer to this specific problem. I have the following data and want to create a bar chart where the bars are ordered from largest to smallest in terms of "Value", rather than having them in alphabetical order:
breadth_data <- read.table(textConnection("Stakeholder Value
'Grantseekers' 0.90
'Donors' 0.89
'Community' 0.55
'Hurricane Relief Fund' 0.24
'Media' 0.19
'Employment Seekers' 0.12
'Affiliates' 0.10
'Youth' 0.09
'Women' 0.02
'Former Board Members' 0.01"), header=TRUE)
Then the basic bar chart:
c <- ggplot(breadth_data, aes(x=Stakeholder, y=Value))
c + geom_bar(stat="identity") + coord_flip() + scale_y_continuous('') + scale_x_discrete('')
I have tried many of the different reorderings and transformations I've seen on StackOverflow but I cannot seem to find one that works. I am sure this is fairly simple, but I would appreciate any help!
Thanks,
Greg
You want function reorder()
:
breadth_data <- transform(breadth_data,
Stakeholder = reorder(Stakeholder, Value))
Which gives:
If you want them the other way round, an easy way is just to use order()
on Value
inside the reorder()
call:
breadth_data <- transform(breadth_data,
Stakeholder = reorder(Stakeholder,
order(Value, decreasing = TRUE)))