API reference
Masked arrays (np.ma)
The np.ma module provides a MaskedArray class that wraps an NDArray with an optional boolean mask. Masked elements are excluded from arithmetic and reductions. np.ma.nomask is false; np.ma.masked is a masked-scalar sentinel.
| Name | Summary |
|---|---|
np.ma | The masked-array sub-module. |
np.ma
#np.maThe masked-array sub-module. Exposes MaskedArray, constructors, mask utilities, and all ufuncs that propagate the mask.
Returns
object
Example
TypeScript
np.ma.nomask; // => false
np.ma.masked_array([1, 2, 3], { mask: [false, true, false] }).count(); // => 2