bucketizer.percentile
bucketizer
Pushes onto the stack an AGGREGATOR which returns the N^th^ percentile of the values in the bucket.
The returned location and elevation are those of the chosen value or are interpolated in the same way the value is.
The percentile is computed according to the formulae in Hyndman, Rob & Fan, Yanan. (1996). Sample Quantiles in Statistical Packages. The American Statistician. Most used types are 1 when no interpolation is wanted and 7 when interpolation is wanted.
Signatures
Examples
[
[
NEWGTS "GTS" RENAME
10 NaN NaN NaN 3.0 ADDVALUE
30 NaN NaN NaN 2.0 ADDVALUE
32 NaN NaN NaN 5.0 ADDVALUE
35 NaN NaN NaN 4.0 ADDVALUE
38 NaN NaN NaN 0.0 ADDVALUE
39 NaN NaN NaN 8.0 ADDVALUE
40 NaN NaN NaN 3.0 ADDVALUE //first bucket
41 NaN NaN NaN -100.0 ADDVALUE
42 NaN NaN NaN 8.0 ADDVALUE
43 NaN NaN NaN 9.0 ADDVALUE
43 NaN NaN NaN 9.0 ADDVALUE
49 NaN NaN NaN 8.0 ADDVALUE //second bucket
]
70.0 bucketizer.percentile //probability of being less than x is 70%. this bucketizer will returns x.
80 //last bucket
40 //bucket span
2 //bucket count
] BUCKETIZE