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22 lines
559 B
Python
22 lines
559 B
Python
import histogram as hg
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import numpy as np
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h = hg.histogram(hg.axis.regular(10, -3, 3, uoflow=False),
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hg.axis.regular(10, -3, 3, uoflow=False))
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xy = np.random.randn(2000).reshape((1000, 2))
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xy[:,1] *= 0.5
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h.fill(xy)
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x = np.array(h.axis(0)) # axis instances behave like sequences
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y = np.array(h.axis(1))
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z = np.asarray(h) # creates a view (no copy involved)
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try:
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import matplotlib.pyplot as plt
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plt.pcolor(x, y, z.T)
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plt.xlabel("x")
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plt.ylabel("y")
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plt.savefig("example_2d_python.png")
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except ImportError:
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pass
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