无法使用 `matplotlib.pyplot` 在 jupyter notebook 上打印文本 [英] Can't print the text on jupyter notebook using `matplotlib.pyplot`
本文介绍了无法使用 `matplotlib.pyplot` 在 jupyter notebook 上打印文本的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
这是我在 jupyter notebook 上的示例代码:
fig = plt.figure()ax = fig.add_subplot(111)ax.plot(np.random.rand(10))定义点击(事件):打印('按钮=%d, x=%d, y=%d, xdata=%f, ydata=%f' %(event.button, event.x, event.y, event.xdata, event.ydata))cid = fig.canvas.mpl_connect('button_press_event', onclick)
解决方案
Jupyter 默认显示绘图的 png 图像.为了获得交互式图形,您需要 %matplotlib notebook
后端.
下一个问题是目前无法交互式打印到单元格输出.这个确切的例子已经是
Here is my sample code on jupyter notebook:
fig = plt.figure()
ax = fig.add_subplot(111)
ax.plot(np.random.rand(10))
def onclick(event):
print('button=%d, x=%d, y=%d, xdata=%f, ydata=%f' %
(event.button, event.x, event.y, event.xdata, event.ydata))
cid = fig.canvas.mpl_connect('button_press_event', onclick)
解决方案
Jupyter by default shows png images of the plot. In order to get an interactive figure, you would need the %matplotlib notebook
backend.
The next problem is that it's currently not possible to interactively print to the cell output. This exact example is already subject of this GitHub issue. A solution may be expected for matplotlib version 2.1.
As of now you might want to print the output to the figure canvas, e.g. as figure title.
To give an example:
import matplotlib.pyplot as plt
import numpy as np
%matplotlib notebook
fig = plt.figure();
ax = fig.add_subplot(111)
ax.plot(np.random.rand(10))
def onclick(event):
a = ('button=%d, x=%d, y=%d, xdata=%f, ydata=%f' %
(event.button, event.x, event.y, event.xdata, event.ydata))
ax.set_title(a)
cid = fig.canvas.mpl_connect('button_press_event', onclick)
plt.show()
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