estimateQuantile method

num? estimateQuantile(double quantile)

Implementation

num? estimateQuantile(double quantile) {
  final count = this.count;
  if (count == null || count <= 0 || bucketCounts.isEmpty) {
    return null;
  }

  final target = count * quantile;
  var running = 0;
  for (var index = 0; index < bucketCounts.length; index += 1) {
    running += bucketCounts[index];
    if (running < target) {
      continue;
    }

    if (index < explicitBounds.length) {
      return explicitBounds[index];
    }
    return explicitBounds.isEmpty ? max : explicitBounds.last;
  }

  return max;
}