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Python Matplotlib.pyplot.axvspan()用法及代碼示例


Matplotlib是一個繪圖庫,用於在Python中創建靜態,動畫和交互式可視化。\ Pyplot是Matplotlib模塊,提供MATLAB-like接口。 Matplotlib設計為與MATLAB一樣可用,具有使用Python的能力以及免費和開源的優勢。

matplotlib.pyplot.axvspan()

此函數設置跨繪圖軸的垂直矩形

用法: matplotlib.pyplot.axvspan(xmin, xmax, ymin=0, ymax=1, **kwargs)


參數:
xmin:表示X軸上垂直矩形起始位置的數字
xmin:表示垂直矩形在X軸上的結束位置的數字
ymin:y軸上的垂直矩形起始位置,它將取0到1之間的值,0是該軸的底部,1是該軸的頂部
ymax:y軸上的垂直矩形結束位置,它將取0到1之間的值,0是該軸的底部,1是該軸的頂部
**kwargs:其他可選參數可更改矩形的屬性,例如更改顏色等。

範例1:

# Importing matplotlib.pyplot as plt 
import matplotlib.pyplot as plt 
  
# Initializing x and y 
x =[1, 15, 27, 48, 50] 
y =[1, 12, 22, 45, 67] 
  
# Plotting the graph 
plt.plot(x, y) 
  
# Drawing rectangle starting  
# x = 5 and extending till x = 20 
# With vertical span starting at  
# half the length of y-axis(ymin = 0.5) 
# And extending till the top of  
# axis(ymax = 1) 
plt.axvspan(5, 20, ymin = 0.5, ymax = 1) 
plt.show()

輸出:
matplotlib.pyplot.axvspan()

範例2:

import matplotlib.pyplot as plt 
  
  
x =[1, 15, 27, 48, 50] 
y =[1, 12, 22, 45, 67] 
  
plt.plot(x, y) 
  
# Drawing rectangle starting  
# x = 5 and extending till x = 15 
# With vertical span starting at 
# 25 % the length of y-axis 
# And extending till the 80 % of 
# axis And also we are setting  
# the color of rectangle to yellow  
# and its edge color to blue 
plt.axvspan(5, 15, ymin = 0.25, 
            ymax = 0.80, ec ='blue',  
            color ='yellow') 
  
plt.show()

輸出:
matplotlib.pyplot.axvspan()

範例3:

import matplotlib.pyplot as plt 
  
  
x =[1, 15, 27, 48, 50] 
y =[1, 12, 22, 45, 67] 
  
plt.plot(x, y) 
  
# Setting alpha will make  
# the rectangle transparent 
plt.axvspan(10, 30, ymin = 0.15,  
            ymax = 0.70, ec ='blue', 
            color ='yellow', 
            alpha = 0.5) 
  
plt.show()

輸出:
matplotlib.pyplot.axvspan()




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注:本文由純淨天空篩選整理自sathvik chiramana大神的英文原創作品 Matplotlib.pyplot.axvspan() in Python。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。