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各种图形代码

1.堆积面积图

import numpy as np

import matplotlib.pyplot as plt

x = np.arange(6)

y1 = np.array([1,2,3,4,5,6])

y2 = np.array([1,3,5,7,9,4])

y3 = np.array([2,4,7,8,9,5])

plt.stackplot(x, y1, y2, y3)

plt.title(‘2020080603021’)

plt.show()



2.直方图

import numpy as np

import matplotlib.pyplot as plt

scores = np.random.randint(0, 100, 50)

plt.hist(scores, bins=8, histtype=‘stepfilled’)

plt.title(‘2020080603021’)

plt.show()



3.灰度直方图

import numpy as np

import matplotlib.pyplot as plt

random_state = np.random.RandomState(19680801)

random_x = random_state.randn(10000)

plt.hist(random_x, bins=25)

plt.title(‘2020080603021’)

plt.show()



4.饼图

import numpy as np

import matplotlib.pyplot as plt

import matplotlib as mpl