How to make a histogram in ipython notebook using ggplot2 (for python)

Question

I'm trying to make a histogram of a simple list of numbers in python using ipython notebook and ggplot for python. Using pylab, it's easy enough, but I cannot get ggplot to work.

I'm using this code (based on the diamond histogram example, which does work for me):

from ggplot import *
a = [1, 1, 2, 1, 1, 4, 5, 6]
p = ggplot(aes(x='carat'), data=a)
p + geom_hist() + ggtitle("Histogram of Diamond Carats") + labs("Carats", "Freq")

Using ipython & pylab, I can make a histogram with just hist(a) and it displays. How do I make a histogram come up using ggplot?

Do you want ggplot because of the style or is there another reason. If the former is the case, you can try mpltools, a matplotlib extension which can mimic the style of ggplot (see tonysyu.github.io/mpltools/auto_examples/style/plot_ggplot.html) — Jakob
– Jakob, Commented Oct 15, 2013 at 20:21

Aman · Accepted Answer · 2013-10-29 17:32:34Z

17

If you just want to make a histogram of the numbers in your vector 'a', there are a couple of problems.

First, ggplot accepts data in the form of a pandas Dataframe, so you need to build that first.

import pandas as pd
a = [1, 1, 2, 1, 1, 4, 5, 6]
df = pd.DataFrame(a, columns=['a'])

Second, the geom is geom_histogram() not geom_hist(). And finally, it looks like you're throwing in code from one of the example plots of the diamond data. You don't need that, so I've removed it.

from ggplot import *
p = ggplot(aes(x='a'), data=df)
p + geom_histogram(binwidth=1)

enter image description here

answered Oct 29, 2013 at 17:32

Aman

47.4k7 gold badges38 silver badges37 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

begray · Accepted Answer · 2014-01-26 14:25:18Z

8

Did you add

%matplotlib inline

as first command in your notebook?

answered Jan 26, 2014 at 14:25

begray

16.3k4 gold badges25 silver badges14 bronze badges

Collectives™ on Stack Overflow

How to make a histogram in ipython notebook using ggplot2 (for python)

2 Answers 2

Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related