mirror of https://github.com/pyodide/pyodide.git
21 lines
512 B
Python
21 lines
512 B
Python
# from: http://jakevdp.github.com/blog/2012/08/24/numba-vs-cython/
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# setup: import numpy as np ; X = np.linspace(0,10,200).reshape(20,10)
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# run: pairwise_loop(X)
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# pythran export pairwise_loop(float [][])
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import numpy as np
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def pairwise_loop(X):
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M, N = X.shape
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D = np.empty((M, M))
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for i in range(M):
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for j in range(M):
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d = 0.0
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for k in range(N):
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tmp = X[i, k] - X[j, k]
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d += tmp * tmp
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D[i, j] = np.sqrt(d)
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return D
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