matplotlib之條形圖
阿新 • • 發佈：2019-01-01
import matplotlib.pyplot as plt
import numpy as np
N = 5
y = [20, 30, 10, 25, 15]
index = np.arange(N)
plt.bar(left=index, height=y)
plt.show()
調整顏色與寬度
plt.bar(left=index, height=y, color='red', width=0.5)
plt.show()
畫水平條形圖
plt.bar(left=0, bottom=index, width=y, height=0.5, color='red', orientation='horizontal') plt.show() # 或者 plt.barh(left=0, bottom=index, width=y, height=0.5,color='red') plt.show()
畫並列條形圖
A = [55, 45, 35, 25]
B = [10, 20, 30, 40]
index = np.arange(4)
bar_width = 0.3
plt.bar(left=index, height=A, width=bar_width, color='b')
plt.bar(left=index+bar_width, height=B, width=bar_width, color='r')
plt.show()
水平並列條形圖
plt.bar(left=0, bottom=index, height=bar_width, width=A, color='b', orientation='horizontal') plt.bar(left=0, bottom=index+bar_width, height=bar_width, width=B, color='r', orientation='horizontal') # 或者 plt.barh(left=0, bottom=index, height=bar_width, width=A, color='b') plt.barh(left=0, bottom=index+bar_width, height=bar_width, width=B, color='r') plt.show()
堆疊條形圖
A = [55, 45, 35, 25]
B = [10, 20, 30, 40]
index = np.arange(4)
bar_width = 0.3
plt.bar(left=index, height=A, color='b', width=bar_width)
plt.bar(left=index, height=B, width=bar_width, color='r', bottom=A)
plt.show()
水平
plt.bar(left=0, bottom=index, height=bar_width, color='b', width=A, orientation='horizontal') plt.bar(left=A, bottom=index, height=bar_width, width=B, color='r', orientation='horizontal') # 或者 plt.barh(left=0, bottom=index, height=bar_width, color='b', width=A) plt.barh(left=A, bottom=index, height=bar_width, width=B, color='r') plt.show()
