add title to collection of pandas hist plots

python pandas title histogram
dreme picture dreme · Oct 27, 2013 · Viewed 68.3k times · Source

I'm looking for advice on how to show a title at the top of a collection of histogram plots that have been generated by a pandas df.hist() command. For instance, in the histogram figure block generated by the code below I'd like to place a general title (e.g. 'My collection of histogram plots') at the top of the figure:

data = DataFrame(np.random.randn(500).reshape(100,5), columns=list('abcde'))
axes = data.hist(sharey=True, sharex=True)

I've tried using the title keyword in the hist command (i.e. title='My collection of histogram plots'), but that didn't work.

The following code does work (in an ipython notebook) by adding text to one of the axes, but is a bit of a kludge.

axes[0,1].text(0.5, 1.4,'My collection of histogram plots', horizontalalignment='center',
               verticalalignment='center', transform=axes[0,1].transAxes)

Is there a better way?

Answer

Filippo Mazza picture Filippo Mazza · Oct 31, 2017

With newer Pandas versions, if someone is interested, here a slightly different solution with Pandas only:

ax = data.plot(kind='hist',subplots=True,sharex=True,sharey=True,title='My title')

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