对齐y标签
这里显示了两种方法,一种是使用对 Figure.align_ylabels 的简短调用,另一种是使用手动方式来对齐标签。
import numpy as np
import matplotlib.pyplot as plt
def make_plot(axs):
box = dict(facecolor='yellow', pad=5, alpha=0.2)
# Fixing random state for reproducibility
np.random.seed(19680801)
ax1 = axs[0, 0]
ax1.plot(2000*np.random.rand(10))
ax1.set_title('ylabels not aligned')
ax1.set_ylabel('misaligned 1', bbox=box)
ax1.set_ylim(0, 2000)
ax3 = axs[1, 0]
ax3.set_ylabel('misaligned 2', bbox=box)
ax3.plot(np.random.rand(10))
ax2 = axs[0, 1]
ax2.set_title('ylabels aligned')
ax2.plot(2000*np.random.rand(10))
ax2.set_ylabel('aligned 1', bbox=box)
ax2.set_ylim(0, 2000)
ax4 = axs[1, 1]
ax4.plot(np.random.rand(10))
ax4.set_ylabel('aligned 2', bbox=box)
# Plot 1:
fig, axs = plt.subplots(2, 2)
fig.subplots_adjust(left=0.2, wspace=0.6)
make_plot(axs)
# just align the last column of axes:
fig.align_ylabels(axs[:, 1])
plt.show()
另见 Figure.align_ylabels and Figure.align_labels for a direct method of doing the same thing. Also Aligning Labels
或者,我们可以使用y轴对象的set_label_coords方法手动在子图之间手动对齐轴标签。请注意,这需要我们知道硬编码的良好偏移值。
fig, axs = plt.subplots(2, 2)
fig.subplots_adjust(left=0.2, wspace=0.6)
make_plot(axs)
labelx = -0.3 # axes coords
for j in range(2):
axs[j, 1].yaxis.set_label_coords(labelx, 0.5)
plt.show()
参考
此示例中显示了以下函数,方法,类和模块的使用:
import matplotlib
matplotlib.figure.Figure.align_ylabels
matplotlib.axis.Axis.set_label_coords
matplotlib.axes.Axes.plot
matplotlib.pyplot.plot
matplotlib.axes.Axes.set_title
matplotlib.axes.Axes.set_ylabel
matplotlib.axes.Axes.set_ylim