SciPy

This is documentation for an old release of NumPy (version 1.8.0). Read this page in the documentation of the latest stable release (version > 1.17).

numpy.RankWarning

exception numpy.RankWarning[source]

Issued by polyfit when the Vandermonde matrix is rank deficient.

For more information, a way to suppress the warning, and an example of RankWarning being issued, see polyfit.

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