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REFERENCEnumpy

numpy Documentation

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np.count_nonzero()

AI & DATA SCIENCE // np-count-nonzero

Counts the number of non-zero values in the array.

Syntax

count = np.count_nonzero(arr)

Examples

Example 01Basic Usage
count = np.count_nonzero(arr)

Best Practices

  • Refer to the official NumPy documentation for deep vectorization techniques.
  • Avoid writing custom Python for-loops for operations that can be vectorized with NumPy.