[英]How can I set x-axis tick marks with only whole numbers?
我一直在使用主機繪制我的圖形,我想從x軸取出十進制數字。 我的下面的代碼有點簡化,它代表了我需要的東西。 我希望x范圍與RUNS矢量完全相同。 非常感謝。
import matplotlib.pyplot as plt
from mpl_toolkits.axes_grid1 import host_subplot
import numpy as np
import mpl_toolkits.axisartist as AA
import matplotlib.gridspec as gridspec
gs = gridspec.GridSpec(2, 1, height_ratios=[1, 1])
RUNS = [1,2,3,4,5]
NV = [26.3, 28.4, 28.5, 28.45, 28.5]
host = host_subplot(gs[0], axes_class = AA.Axes)
host.set_xlabel("Iteration")
host.set_ylabel("Stress (MPa)")
sv, = host.plot(RUNS,NV, marker = 'o', color = 'gray')
plt.grid(True)
plt.show()
您可以使用MaxNLocator
將主要刻度標簽設置為整數,但它並不簡單。
import matplotlib.pyplot as plt
from mpl_toolkits.axes_grid1 import host_subplot
import numpy as np
import mpl_toolkits.axisartist as AA
import matplotlib.gridspec as gridspec
from matplotlib.ticker import MaxNLocator ## Import MaxNLocator
gs = gridspec.GridSpec(2, 1, height_ratios=[1, 1])
RUNS = [1,2,3,4,5]
NV = [26.3, 28.4, 28.5, 28.45, 28.5]
host = host_subplot(gs[0], axes_class = AA.Axes)
host.set_xlabel("Iteration")
host.set_ylabel("Stress (MPa)")
x_ax = host.axes.get_xaxis() ## Get X axis
x_ax.set_major_locator(MaxNLocator(integer=True)) ## Set major locators to integer values
sv, = host.plot(RUNS,NV, marker = 'o', color = 'gray')
plt.grid(True)
plt.show()
您可以在顯示繪圖之前明確設置刻度標簽:
plt.xticks(RUNS)
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