将标题添加到 pandas 历史地块集合中 [英] add title to collection of pandas hist plots

问题描述

我正在寻找有关如何在熊猫df.hist()命令生成的直方图图的顶部显示标题的建议.例如，在下面的代码生成的直方图图形块中，我想在图形的顶部放置一个通用标题(例如我的直方图集合")

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)

我尝试在hist命令中使用 title 关键字(即title =我的直方图图集")，但这没用.

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

以下代码可以通过在其中一个轴上添加文本来工作(在ipython笔记本中)，但有点麻烦.

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)

有更好的方法吗?

推荐答案

您可以使用suptitle():

import pylab as pl
from pandas import *
data = DataFrame(np.random.randn(500).reshape(100,5), columns=list('abcde'))
axes = data.hist(sharey=True, sharex=True)
pl.suptitle("This is Figure title")

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