Hi @dverfail and @vtorralba and @nperez ,
This merge request follows the issue raised by @dverfail .
In this new version CST_Calibration the function checks whether there are more than 3 observation-forecast pairs to perform the calibration training (per dataset-ftime-lat-lon point). If not available, the forecast returned is filled with NA (by default and when na.fill = T) or with uncorrected forecast (when na.fill = F). A warning is then also issued.
kind regards
Bert