Setting the diagonal values of an array
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How do I efficiently set the diagonal elements of a >= 2 dimensional NumPy array?

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In recent Subversion versions of NumPy (and in the upcoming release of NumPy 1.4.0) you can use the fill_diagonal function. The source code of the function is in index_tricks.py if you'd rather use it now; just copy and paste it.

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updated2009-08-22 17:15:49
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