python 條形圖 負值_Python-Matplotlib 5 條形圖

Python-Matplotlib 5 條形圖

Example 1

import numpy as np

import matplotlib.pyplot as plt

N = 5

y = [20, 10, 30, 25, 15]

index = np.arange(5)

print(index)

#p1 = plt.bar(left=index, height=y)

#p1 = plt.bar(left=index, height=y, color='red',width=0.5,)

# orientation='horizontal'

p1 = plt.bar(left=0,bottom=index , width=y, color='yellow',height=0.5, orientation='horizontal')

plt.show()

Example 2

import numpy as np

import matplotlib.pyplot as plt

N = 5

y1 = [20, 10, 30, 25, 15]

y2 = [15, 14, 34 ,10,5]

index = np.arange(5)

bar_width = 0.3

plt.bar(index , y1, width=0.3 , color='y')

plt.bar(index + bar_width, y2, width=0.3 , color='b')

plt.show()

Example 3

import numpy as np

import matplotlib.pyplot as plt

N = 5

y1 = [20, 10, 30, 25, 15]

y2 = [15, 14, 34 ,10,5]

index = np.arange(5)

bar_width = 0.3

plt.bar(index , y1, width=0.3 , color='y')

plt.bar(index , y2, width=0.3 , color='b' ,bottom=y1)

plt.show()