python-3.x - 如何停止在此单元格中打印图表，但下一个单元格的代码非常短

Question

这些代码生成图表

import numpy as np
import matplotlib.pyplot as plt


N = 5
menMeans = (20, 35, 30, 35, 27)
womenMeans = (25, 32, 34, 20, 25)
menStd = (2, 3, 4, 1, 2)
womenStd = (3, 5, 2, 3, 3)
ind = np.arange(N)    # the x locations for the groups
width = 0.35       # the width of the bars: can also be len(x) sequence

p1 = plt.bar(ind, menMeans, width, yerr=menStd)
p2 = plt.bar(ind, womenMeans, width,
             bottom=menMeans, yerr=womenStd)

plt.ylabel('Scores')
plt.title('Scores by group and gender')
plt.xticks(ind, ('G1', 'G2', 'G3', 'G4', 'G5'))
plt.yticks(np.arange(0, 81, 10))
plt.legend((p1[0], p2[0]), ('Men', 'Women'))

Jupyter notebook 自动打印图表，即使我没有调用plt.show(). 我不想在与代码相同的单元格中显示图表，而是通过运行非常短的代码（例如plt.show(). 为了使单元格尽可能简洁。

标签： python-3.xmatplotlib

Answer 1

只需将所有与绘图相关的语句包含在一个名为 plot_and_show() 的函数中。然后，您可以在准备好时调用该函数。

import matplotlib.pyplot as plt
import numpy as np

N = 5
menMeans = (20, 35, 30, 35, 27)
womenMeans = (25, 32, 34, 20, 25)
menStd = (2, 3, 4, 1, 2)
womenStd = (3, 5, 2, 3, 3)
ind = np.arange(N)    # the x locations for the groups
width = 0.35       # the width of the bars: can also be len(x) sequence

def plot_and_show():
    p1 = plt.bar(ind, menMeans, width, yerr=menStd)
    p2 = plt.bar(ind, womenMeans, width,
                 bottom=menMeans, yerr=womenStd)

    plt.ylabel('Scores')
    plt.title('Scores by group and gender')
    plt.xticks(ind, ('G1', 'G2', 'G3', 'G4', 'G5'))
    plt.yticks(np.arange(0, 81, 10))
    plt.legend((p1[0], p2[0]), ('Men', 'Women'))

plot_and_show()