FPGrowth<T> class

Implements the FP-Growth algorithm for mining frequent itemsets.

This class provides a high-level interface to run the FP-Growth algorithm. It handles transactions, calculates minimum support, and mines the patterns. It uses an internal integer mapping to optimize performance and memory.

Available extensions

Constructors

FPGrowth({required double minSupport, Logger? logger, int parallelism = 1})
Creates an instance of the FP-Growth algorithm runner.

Properties

hashCode → int
The hash code for this object.
no setterinherited
minSupport → double
The minimum support threshold.
final
parallelism → int
The number of isolates to use for parallel processing.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

mine(Stream<List<T>> streamProvider()) → Future<(Map<List<T>, int>, int)>
Mines the frequent itemsets from the given transaction stream.
mineFromCsv(String filePath) → Future<(Map<List<String>, int>, int)>

Available on FPGrowth<String>, provided by the FPGrowthIO extension

Mines frequent itemsets directly from a CSV file using the current instance configuration (minSupport, parallelism, etc.).
mineFromList(List<List<T>> transactions) → Future<(Map<List<T>, int>, int)>
A convenience method to mine frequent itemsets from an in-memory list.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited