data.sketches 0.1.0

• Initial release. Provides an R interface to the Apache DataSketches C++ library:
  • Quantile sketches: kll_doubles(), kll_floats(), req(), and tdigest_double().
  • Cardinality sketches: hll(), cpc(), and theta() (with set operations).
  • Frequency sketches: frequent_items() and count_min().
  • Tuple sketches: array_of_doubles() (with set operations).
  • Sampling sketches: varopt() and ebpps().
  • Filters: bloom_filter().
  All sketches provide $update(), $merge(), $summary(), $inspect(), and native $serialize() / bytes = round-tripping, plus format(), print(), as.character(), and summary() methods.