colour.utilities.fill_nan

colour.utilities.fill_nan(a: ArrayLike, method: Literal['Interpolation', 'Constant'] | str = 'Interpolation', default: Real = 0) → NDArray

Fill the NaN values in the specified array \(a\) using the specified method.

Parameters:

• a (ArrayLike) – Array \(a\) to fill the NaNs of.

• method (Literal['Interpolation', 'Constant'] | str) – Interpolation method linearly interpolates through the NaN values, Constant method replaces NaN values with default.

• default (Real) – Value to use with the Constant method.

Returns:

NaN-filled array \(a\).

Return type:

numpy.ndarray

Examples

>>> a = np.array([0.1, 0.2, np.nan, 0.4, 0.5])
>>> fill_nan(a)
array([ 0.1,  0.2,  0.3,  0.4,  0.5])
>>> fill_nan(a, method="Constant")
array([ 0.1,  0.2,  0. ,  0.4,  0.5])