public class StatisticsHelper
extends java.lang.Object
Modifier and Type | Method and Description |
---|---|
static java.util.Optional<java.lang.Double> |
estimateAverageBucketSize(TupleMask groupMask,
Accuracy requiredAccuracy,
java.util.function.BiFunction<TupleMask,Accuracy,java.util.Optional<java.lang.Long>> estimateCardinality) |
static java.util.Optional<java.lang.Double> |
min(java.util.Optional<java.lang.Double> a,
double b) |
static java.util.Optional<java.lang.Double> |
min(java.util.Optional<java.lang.Double> a,
java.util.Optional<java.lang.Double> b) |
public static java.util.Optional<java.lang.Double> estimateAverageBucketSize(TupleMask groupMask, Accuracy requiredAccuracy, java.util.function.BiFunction<TupleMask,Accuracy,java.util.Optional<java.lang.Long>> estimateCardinality)
public static java.util.Optional<java.lang.Double> min(java.util.Optional<java.lang.Double> a, java.util.Optional<java.lang.Double> b)
public static java.util.Optional<java.lang.Double> min(java.util.Optional<java.lang.Double> a, double b)