Python: Matplotlib：Matplotlib中垂直对齐的图表

Question

我希望能够从多个数据源读取数据并将它们绘制在彼此之上。我需要它们的绘图方式是有一个单独的 x 轴标签位于底部，其他的应该与相同的 x 轴对齐，无论有哪些点可用。

以下是问题的示例：

import matplotlib.pylab as plt
import random
import matplotlib.gridspec as gridspec

random.seed(20)

#create x-axis of my data
x1 = range(0,10) #different range than the next one
x2 = range(1,9)

#create data (just random data corresponding the x1,x2)
data1 = [random.random() for i in x1]
data2 = [random.random()*1000 for i in x2]

gs = gridspec.GridSpec(2,1)
fig = plt.figure()

#first plot
ax = fig.add_subplot(gs[0])
ax.plot(x1,data1)
ax.set_ylabel(r'Label One', size =16)
ax.get_yaxis().set_label_coords(-0.1,0.5)
plt.tick_params(
    axis='x',          # changes apply to the x-axis
    labelbottom='off') # labels along the bottom edge are off

#second plot
ax = fig.add_subplot(gs[1])
ax.plot(x2,data2)
ax.set_ylabel(r'Label Two', size =16)
ax.get_yaxis().set_label_coords(-0.1,0.5)

plt.show()

这将产生以下图形： 请注意，上部图的`x轴`与下部图的`x轴`不匹配。

我需要所有的图都彼此匹配，并在较小的图中保留没有数据的区域为空。这可以实现吗？

如果您需要任何其他信息，请提出要求。

- The Quantum Physicist

Answer 1

使用sharex参数来调用add_subplot()

import matplotlib.pylab as plt
import random
import matplotlib.gridspec as gridspec

random.seed(20)

#create x-axis of my data
x1 = range(0,10) #different range than the next one
x2 = range(1,9)

#create data (just random data corresponding the x1,x2)
data1 = [random.random() for i in x1]
data2 = [random.random()*1000 for i in x2]

gs = gridspec.GridSpec(2,1)
fig = plt.figure()

#first plot
ax = fig.add_subplot(gs[0])
ax.plot(x1,data1)
ax.set_ylabel(r'Label One', size =16)
ax.get_yaxis().set_label_coords(-0.1,0.5)
plt.tick_params(
    axis='x',          # changes apply to the x-axis
    labelbottom='off') # labels along the bottom edge are off

#second plot
ax = fig.add_subplot(gs[1], sharex=ax)
ax.plot(x2,data2)
ax.set_ylabel(r'Label Two', size =16)
ax.get_yaxis().set_label_coords(-0.1,0.5)

plt.show()

- Diziet Asahi

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请问您为什么更喜欢使用 gridspec.GridSpec 而不是 fig.add_subplot(211)？谢谢！ - Boson Bear