geopfa.extrapolation.estimate_variance¶
- estimate_variance(Y)[source]¶
Estimate the unbiased sample variance of an array.
- Parameters:
Y (numpy.ndarray) – Observed values (1-D or 2-D array-like). If 2-D, the array is flattened before variance computation.
- Returns:
float – Unbiased sample variance (using
ddof=1).