environmentaltools.common.rmse

environmentaltools.common.rmse(a, b)

Calculate Root Mean Square Error between two arrays.

The RMSE measures the square root of the average of squared differences between predicted and observed values. Lower values indicate better fit.

Parameters:

• a (array-like) – First array (e.g., observed values).

• b (array-like) – Second array (e.g., predicted values).

Returns:

The root mean square error value.

Return type:

float