Pandas DataFrame.hist() doesn't work

Question

i follow the google course about machine learning. i'm on this part : pandas

But on my mac when i want to generate a chart with this command :

california_housing_dataframe.hist('housing_median_age')

it doesn't work. The python icon appear but nothing is displaying on the screen.

i have see some tips with the backend parameter into matplotlibrc but mine is equals to MacOSX and it should work ?

Thanks for help

Answer 1

To elaborate on the comment from T. Kelly:

You need to call plt.show(). This worked for me:

import matplotlib.pyplot as plt
california_housing_dataframe.hist('housing_median_age')
plt.show()

Answer 2

I'm following Google ML Crash Course(I think you are also following it based on the variable name).

I too encountered the same problem.

When I call

california_housing_dataframe.hist('housing_median_age')

It is not showing any histogram. Instead it is showing

array([[<matplotlib.axes._subplots.AxesSubplot object at 0x12bb814e0>]],
  dtype=object)

To show the histogram, add this line in your imports:

%matplotlib inline

It should show the histogram.