$partialdiff sub X$ [ Malawi dekadal rainfall rfe_mergeddiff_percent ]
| Longitude | grid: /X (degree_east) ordered (32.6625E) to (35.9625E) by 0.03750004 N= 89 pts :grid | 
|---|---|
| Latitude | grid: /Y (degree_north) ordered (9.3375S) to (17.2875S) by 0.03750001 N= 213 pts :grid | 
| Time | grid: /T (days since 1960-01-01) ordered [ (6-15 Jan 1981) (0000 16 Jan 1981 - 1200 26 Jan 1981) (1200 26 Jan 1981 - 2400 5 Feb 1981) ... (0000 16 Dec 2020 - 1200 26 Dec 2020)] N= 1439 pts :grid |