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Package org.apache.datasketches.pig.quantiles

Pig UDFs for Quantiles sketches.

See: Description

Package org.apache.datasketches.pig.quantiles Description

Pig UDFs for Quantiles sketches. This includes UDFs for generic ItemsSketch and specialized DoublesSketch.

The generic implementation is in the form of abstract classes DataToItemsSketch and UnionItemsSketch to be specialized for particular types of items. An implementation for strings is provided: DataToStringsSketch, UnionStringsSketch, plus UDFs to obtain the results from sketches: GetQuantileFromStringsSketch, GetQuantilesFromStringsSketch and GetPmfFromStringsSketch.

Support for DoublesSketch: DataToDoublesSketch, UnionDoublesSketch, GetQuantileFromDoublesSketch, GetQuantilesFromDoublesSketch, GetPmfFromDoublesSketch

Author:
Alexander Saydakov
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