NumPy ufuncLesson 44Free preview

ufunc Set Operations

This lesson is part of NumPy · All levels

Summary

NumPy provides set operations such as np.unique for unique, np.union1d for combined, np.intersect1d for slices, as well as np.setdiff1d and np.setxor1d for symmetrical differences. The np.in1d function (now np.isin) checks the membership of the element. This operation is commonly used to compare and clean up data.

Key points

Returns the unique element in orderly condition.
Np.union1d combine two sets without duplicates.
Take the slice, take the difference.
It produces a membership mask of the element.

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