Quantile mapping

Command-line example

Options

• extrapolation (string): One of '1to1', 'meanSlope', 'nearestSlope', 'zero'.
• extraObs (array): Add these static observed values into all parameters.
• extraFcst (array): Add these static forecast values into all parameters.

Parameters

If there are N quantiles, then the parameter set is 2N long. Parameters 1, 3, 5, ... are the observed (or reference) quantiles, and parameters 2, 4, 6, ... are the raw forecast quantiles.

Python example

fcst = [250, 270, 290, 310]
obs = [240, 275, 290, 305]
gridpp.quantile_mapping(ivalues, fcst, ref, gridpp.ExtrapolationOneToOne)