問題描述

我想將 x 軸刻度標簽更改為自定義字符串，但以下不起作用.如何將刻度標簽設置為 [one"、two"、three"]?

I want to change the x-axis ticklabels to custom strings, but the following does not work. How can I set the ticklabels to ["one", "two", "three"]?

from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
import matplotlib.pyplot as plt

def pushButtonClicked(self):
        code = self.lineEdit.text()
       
       
        x=["one","two","three"]
        l=[1,2,3]
        y=[2,3,4]
        ax = self.fig.add_subplot(111)
       
        print(1)
        
        ax.plot(l, y, label='DeadPopulation')
        ax.xticks(l,x)
        print(IntroUI.g_sortArrayDeadcnt)
      
        ax.legend(loc='upper right') 
        ax.grid() 
        self.canvas.draw()

推薦答案

我假設您只想將刻度設置為等于 ['one', 'two', 'three']?

I assume you just want to set the ticks to be equal to ['one', 'two', 'three']?

為此，您需要使用 set_xticks() 和 set_xticklabels():

To do this, you need to use set_xticks() and set_xticklabels():

from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
import matplotlib.pyplot as plt

def pushButtonClicked(self):
        code = self.lineEdit.text()


        x=["one","two","three"]
        l=[1,2,3]
        y=[2,3,4]
        ax = self.fig.add_subplot(111)

        print(1)

        ax.plot(l, y, label='DeadPopulation')

        # Set the tick positions
        ax.set_xticks(l)
        # Set the tick labels
        ax.set_xticklabels(x)

        print(IntroUI.g_sortArrayDeadcnt)

        ax.legend(loc='upper right') 
        ax.grid() 
        self.canvas.draw()

小例子

import matplotlib.pyplot as plt
f, ax = plt.subplots()

x = ['one', 'two', 'three']
l = [1, 2, 3]
y = [2, 3, 4]

ax.plot(l,y)
ax.set_xticks(l)
ax.set_xticklabels(x)

plt.show()

下面是它的樣子:

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