class sklearn.exceptions.NonBLASDotWarning [source]
Warning used when the dot operation does not use BLAS.
This warning is used to notify the user that BLAS was not used for dot operation and hence the efficiency may be affected.
Changed in version 0.18: Moved from sklearn.utils.validation, extends EfficiencyWarning.
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http://scikit-learn.org/stable/modules/generated/sklearn.exceptions.NonBLASDotWarning.html