Range tools

Range normalization, distance metrics, notation buckets, blocker pressure, and compact range summaries.

Export	Summary
normalizeSparseRange	Normalize a dense or sparse 1326-combo range into a dense probability vector.
pruneRangeByMinWeight	Drop low-weight range combos and return a compact sparse range.
mergeSparseRanges	Blend two ranges with caller-supplied weights and normalize the result.
intersectSparseRanges	Keep the overlapping mass between two villain ranges.
subtractSparseRange	Remove one weighted range from another and normalize the remaining mass.
rangeComboCount	Count active combos in a dense or sparse range.
rangeShannonEntropy	Measure how spread out a range is after normalization.
rangeGiniCoefficient	Measure how concentrated a range is across its combos.
rangeCoverageFraction	Return the share of the 1326 combo grid with positive mass.
rangeWeightTopKMass	Return the normalized probability mass held by the top weighted combos.
rangeDistanceL1	Compute L1 distance between two normalized ranges.
rangeDistanceL2	Compute Euclidean distance between two normalized ranges.
rangeDistanceJensenShannon	Compute Jensen-Shannon distance between two normalized ranges.
rangeCosineSimilarity	Compare two range vectors by cosine similarity.
rangeTopCombos	List the highest-weight combos in a range.
rangeBucketWeightsByHandClass	Bucket range mass into practical preflop hand classes.
rangeBucketWeightsByNotation	Aggregate combo weights into notation buckets such as AKs and QQ.
rangeFromNotationWeights	Build a dense range from notation-weight entries.
rangeBlockerPressureByCard	Measure how much range mass each deck card blocks.
rangeRemovalSensitivityVsHero	Estimate hero-equity sensitivity to removing each live card from villain range.