[PYTHON MATRIX-SIG] Handling null data points

[Konrad Hinsen]

> A neat trick for the C code is to use NAN (Not A Number) for the
> missing value and set up a signal handler that is invoked when the
> NANs are used.  During the signal handler, you then can decide what

But this can get messy if several programs/libraries try to use the
same trick. I wouldn't use it with Python.

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Konrad Hinsen                          | E-Mail: hinsen@ibs.ibs.fr
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