如何获得要绘制的matplotlib Axes实例? [英] How to get a matplotlib Axes instance to plot to?

问题描述

我需要使用一些库存数据制作烛台图(类似这样).为此，我想使用功能 matplotlib.finance.candlestick().为此功能，我需要提供引号和"要绘制到的轴实例".我创建了一些示例报价，如下所示:

I need to make a candlestick chart (something like this) using some stock data. For this I want to use the function matplotlib.finance.candlestick(). To this function I need to supply quotes and "an Axes instance to plot to". I created some sample quotes as follows:

quotes = [(1, 5, 6, 7, 4), (2, 6, 9, 9, 6), (3, 9, 8, 10, 8), (4, 8, 8, 9, 8), (5, 8, 11, 13, 7)]

我现在还需要一个Axes实例，在这个实例上我有点迷茫.我在使用matplotlib.pyplot之前创建了图.我想我现在需要对 matplotlib.axes 做些事情，但是我不确定到底是什么.

I now also need an Axes instance though, at which I am a bit lost. I created plots before using matplotlib.pyplot. I think I now need to do something with matplotlib.axes though, but I am unsure what exactly.

有人可以帮我一下吗?欢迎所有提示！

Could anybody help me out a little bit here? All tips are welcome!

推荐答案

使用

Use the gca ("get current axes") helper function:

ax = plt.gca()

示例:

import matplotlib.pyplot as plt
import matplotlib.finance
quotes = [(1, 5, 6, 7, 4), (2, 6, 9, 9, 6), (3, 9, 8, 10, 8), (4, 8, 8, 9, 8), (5, 8, 11, 13, 7)]
ax = plt.gca()
h = matplotlib.finance.candlestick(ax, quotes)
plt.show()

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