[ [ NEWGTS "GTS1" RENAME 10 NaN NaN NaN 1 ADDVALUE 20 NaN NaN NaN 5 ADDVALUE NEWGTS "GTS2" RENAME 10 NaN NaN NaN 4 ADDVALUE 20 NaN NaN NaN 3 ADDVALUE NEWGTS "GTS3" RENAME 10 NaN NaN NaN 3 ADDVALUE 20 NaN NaN NaN 8 ADDVALUE NEWGTS "GTS4" RENAME 10 NaN NaN NaN 3 ADDVALUE 20 NaN NaN NaN 2 ADDVALUE ]  reducer.count.include-nulls ] REDUCE
reducer.count.include-nulls function computes for each tick the number of measures of Geo Time Series™ which are in the same equivalence class.
It operates on any type.
The location and elevation returned are the first one encountered, which may vary depending on the order of the parameters.
Null values are included.