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MGAP CPT[Forecast PredErrorVars hindcast_date InputObs CFSv2_AtlPac_sst CrossValHind PearsonR target_date ]
grid: /X (degree_east) ordered (59.5W) to (52.5W) by 0.5 N= 15 pts :grid
grid: /Y (degree_north) ordered (29.25S) to (35.75S) by 0.5 N= 14 pts :grid
grid: /T (months since 01-Jan) ordered (Sep) to (Nov) by 1.0 N= 3 pts :grid
$partialdiff sub L$ [ MGAP CPT PearsonR ] 3.5 months[ X Y | T L]

CPTv10+ files for $partialdiff sub L$ [ MGAP CPT PearsonR ]