我想出了一个不优雅的解决方案。假设我们有X轴和X中每个点的标签列表。

Example:

import matplotlib.pyplot as plt

x = [0,1,2,3,4,5]
y = [10,20,15,18,7,19]
xlabels = ['jan','feb','mar','apr','may','jun']

Let's say that I want to show ticks labels only for 'feb' and 'jun'

xlabelsnew = []
for i in xlabels:
    if i not in ['feb','jun']:
        i = ' '
        xlabelsnew.append(i)
    else:
        xlabelsnew.append(i)

Good, now we have a fake list of labels. First, we plotted the original version.

plt.plot(x,y)
plt.xticks(range(0,len(x)),xlabels,rotation=45)
plt.show()

Now, the modified version.

plt.plot(x,y)
plt.xticks(range(0,len(x)),xlabelsnew,rotation=45)
plt.show()

你可以循环标签，并显示或隐藏你想要的:

   for i, label in enumerate(ax.get_xticklabels()):
        if i % interval != 0:
            label.set_visible(False)

我想出了一个不优雅的解决方案。假设我们有X轴和X中每个点的标签列表。

Example:

import matplotlib.pyplot as plt

x = [0,1,2,3,4,5]
y = [10,20,15,18,7,19]
xlabels = ['jan','feb','mar','apr','may','jun']

Let's say that I want to show ticks labels only for 'feb' and 'jun'

xlabelsnew = []
for i in xlabels:
    if i not in ['feb','jun']:
        i = ' '
        xlabelsnew.append(i)
    else:
        xlabelsnew.append(i)

Good, now we have a fake list of labels. First, we plotted the original version.

plt.plot(x,y)
plt.xticks(range(0,len(x)),xlabels,rotation=45)
plt.show()

Now, the modified version.

plt.plot(x,y)
plt.xticks(range(0,len(x)),xlabelsnew,rotation=45)
plt.show()

另一种方法是设置轴定位器:

import matplotlib.ticker as plticker

loc = plticker.MultipleLocator(base=1.0) # this locator puts ticks at regular intervals
ax.xaxis.set_major_locator(loc)

根据您的需要，有几种不同类型的定位器。

下面是一个完整的例子:

import matplotlib.pyplot as plt
import matplotlib.ticker as plticker

x = [0,5,9,10,15]
y = [0,1,2,3,4]
fig, ax = plt.subplots()
ax.plot(x,y)
loc = plticker.MultipleLocator(base=1.0) # this locator puts ticks at regular intervals
ax.xaxis.set_major_locator(loc)
plt.show()

xmarks=[i for i in range(1,length+1,1)]

plt.xticks(xmarks)

这对我很有效

如果你想要[1,5](1到5包括在内)之间的刻度，那么替换

length = 5

我喜欢这个解决方案(来自Matplotlib绘图Cookbook):

import matplotlib.pyplot as plt
import matplotlib.ticker as ticker

x = [0,5,9,10,15]
y = [0,1,2,3,4]

tick_spacing = 1

fig, ax = plt.subplots(1,1)
ax.plot(x,y)
ax.xaxis.set_major_locator(ticker.MultipleLocator(tick_spacing))
plt.show()

这个解决方案让你通过给ticker.MultipleLocater()的数字显式控制刻度间距，允许自动确定限制，并且便于以后读取。