v0.8.3

What's Changed

• ddsketch: expose gamma ddsketch by @piochelepiotr in #69
• bump version of ddsketches java to 0.8.3 by @piochelepiotr in #74

New Contributors

• @piochelepiotr made their first contribution in #69

Full Changelog: v0.8.2...v0.8.3

v0.8.2

What's Changed

• Fix floating-point errors when encoding/decoding mappings by @CharlesMasson in #66

Full Changelog: v0.8.1...v0.8.2

v0.8.1

• Fix a bug when constructing an empty sketch with exact summary statistics (#64)

v0.8.0

• Add a new space-efficient serialization format and performant functions to encode to and decode from that format (#58)
• Allow serializing summary statistics (#61)
• Add a quartically interpolated index mapping (#50)

v0.7.0

• Add sum and average calculations to the QuantileSketch interface (#45).
• Add QuantileSketch wrapper that keeps track of the exact summary statistics, i.e., minimum, maximum, sum, average and count (#47).
• Make QuantileSketch accept floating-point counts (#43).
• Remove GK sketch (#43).

v0.6.1

• Fix emptiness check in DenseStore.serialize(Serializer).

v0.6.0

• Add a serialization API that is compliant with the existing protobuf message format, without requiring a runtime dependency on protobuf-java.
• Make protobuf-java an optional dependency.

v0.5.0

• DDSketch now accepts negative values and maintain a store for negative values in addition of the one for positive values, which is how SignedDDSketch worked. SignedDDSketch has been removed.
• Preset sketch factory methods have been moved to DDSketches. The ones in DDSketch have been deprecated.
• A paginated store has been added (see #30). For some distributions of input values, especially multimodal ones, it can reduce the memory footprint of the sketch.
• Add QuantileSketch.clear() to make the sketch empty while keeping using already allocated memory.
• Fix a bug in the serialization of BitwiseLinearlyInterpolatedMapping.

v0.4.1

• Fix errors in the javadoc of CubicallyInterpolatedMapping.

v0.4.0

• Add protobuf message formats and conversion methods