CODEWITHSUNDEEP
rggplot2histogram
Meredith
Meredith

Reputation: 13

How can I report the default bin width in R

This is the line that I used to draw a histogram using the ggplot2 package, 

ggplot(ex0116, aes(PerCapitaGDP)) +geom_histogram(fill=NA, color="black") + theme_bw()

When I activate it, it shows a desired histogram and the message that says

'stat_bin()' using 'bins=30'.Pick better value with 'binwidth'

appears.

So I guess that I have a total of 30 bins, but what I want to do is to get the default bin width of this histogram, not the number of bins. I know how to change the bin width, but don't know how to get the default bin width.

What can I do in this situation?

Upvotes: 0

Views: 1011

Answers (1)

arodriguezca
arodriguezca

Reputation: 41

The easiest way for you would be:

diff(range(ex0116$PerCapitaGDP))/30

This is the way ggplot2 calculates the bin width.

Hope it helps!

Upvotes: 1

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