reducer.mad
reducer
Pushes onto the stack an AGGREGATOR which computes the Median Absolute Deviation for each ticks. Null values are removed before computing the MAD for each ticks.
The returned location is the median of all the locations and the returned elevation is the median of all the elevations.
See also
Signatures
Examples
[
[
NEWGTS "GTS1" RENAME
10 NaN NaN NaN -100.0 ADDVALUE //clearly an outlier
20 NaN NaN NaN 5.0 ADDVALUE
NEWGTS "GTS2" RENAME
10 NaN NaN NaN 4.0 ADDVALUE
20 NaN NaN NaN 3.0 ADDVALUE
NEWGTS "GTS3" RENAME
10 NaN NaN NaN 3.0 ADDVALUE
20 NaN NaN NaN 180.0 ADDVALUE //clearly an outlier
NEWGTS "GTS4" RENAME
10 NaN NaN NaN 6.0 ADDVALUE
30 NaN NaN NaN 1.0 ADDVALUE //not aligned
//tick 10: -100.0 3.0 3.0 6.0
//tick 20: 5.0 3.0 180.0
//tick 30: 1.0
]
[]
reducer.mad
] REDUCE