breeze.util
Type members
Classlikes
A builder class for arrays.
A builder class for arrays.
- Type Params
- T
the type of the elements for the builder.
- Companion
- object
A companion object for array builders.
A companion object for array builders.
- Companion
- class
A BloomFilter is an approximate set that sometimes gives false positives. That is, if bf(x) returns true, then it might have been added to the set. If it returns false, then it definitely has not. This is useful for caching and approximation.
A BloomFilter is an approximate set that sometimes gives false positives. That is, if bf(x) returns true, then it might have been added to the set. If it returns false, then it definitely has not. This is useful for caching and approximation.
- Companion
- object
Mixin for case classes that compute their hashcode once, and then cache it. Only good if the case class is immutable, and its contents are also immutable "all the way down".
Mixin for case classes that compute their hashcode once, and then cache it. Only good if the case class is immutable, and its contents are also immutable "all the way down".
An Index over N kinds of things. A little type unsafe.
An Index over N kinds of things. A little type unsafe.
For use when we need an index, but we already have (densely packed) positive ints and don't want hash overhead.
For use when we need an index, but we already have (densely packed) positive ints and don't want hash overhead.
An Index over two kinds of things. Layout is straightforward: The first left.size entries are from the left index, while the next right.size are from the right index. Values are wrapped in Left/Right
An Index over two kinds of things. Layout is straightforward: The first left.size entries are from the left index, while the next right.size are from the right index. Values are wrapped in Left/Right
For encoding counters as vectors and decoding vectors back to counters
For encoding counters as vectors and decoding vectors back to counters
- Companion
- object
Class that builds a 1-to-1 mapping between Ints and T's, which is very useful for efficiency concerns.
Class that builds a 1-to-1 mapping between Ints and T's, which is very useful for efficiency concerns.
Two extra views are provided: the index.synchronized view enables threadsafe access and the index.immutable view keeps prevents the (view) from being updated.
- Companion
- object
Stores various implicits, also available by importing breeze.util._
Stores various implicits, also available by importing breeze.util._
Trait that marks an O(1) bidirectional map between Ints (increasing from 0) and T's. This class is used, for example, to efficiently build unique vector space mappings for strings. The methods in this trait do not mutate the underlying index. Use either a MutableIndex or one of the companion object constructor methods to build an index.
Trait that marks an O(1) bidirectional map between Ints (increasing from 0) and T's. This class is used, for example, to efficiently build unique vector space mappings for strings. The methods in this trait do not mutate the underlying index. Use either a MutableIndex or one of the companion object constructor methods to build an index.
- Companion
- object
Utilities for manipulating and creating Index objects.
Utilities for manipulating and creating Index objects.
- Companion
- class
Class that mimics Java's string interner, but for anything. Threadsafe.
Class that mimics Java's string interner, but for anything. Threadsafe.
- Companion
- object
An Isomorphism is defined by a reversible transformation between two types. useful when one set of implicits is easily defined for some type, but not for some other type
An Isomorphism is defined by a reversible transformation between two types. useful when one set of implicits is easily defined for some type, but not for some other type
- Companion
- object
Maps an index of type T to an index of type U using an isomorphism implicit
Maps an index of type T to an index of type U using an isomorphism implicit
Utilities and implicits for iterators. Nothing major.
Utilities and implicits for iterators. Nothing major.
This utility class facilitates transparent access of breeze data objects from plain Java without Scala-related Generic complications.
This utility class facilitates transparent access of breeze data objects from plain Java without Scala-related Generic complications.
A logger that only evaluates parameters lazily if the corresponding log level is enabled.
A logger that only evaluates parameters lazily if the corresponding log level is enabled.
A Lens defines a functional way of handling getters/setters. They're useful for extending transformations on a part of a case class to the whole case class by updating that one component
A Lens defines a functional way of handling getters/setters. They're useful for extending transformations on a part of a case class to the whole case class by updating that one component
- Companion
- object
An Index that contains an extra method: <em>index</em> that adds the given element (if necessary), returning its (possibly new) position in the index.
An Index that contains an extra method: <em>index</em> that adds the given element (if necessary), returning its (possibly new) position in the index.
Base class for all option case classes in breeze
Base class for all option case classes in breeze
Lifts an index of T into an index of Option[T] . The last element is None. Everything else is as you expect.
Lifts an index of T into an index of Option[T] . The last element is None. Everything else is as you expect.
Stupid Typesafe logging lib trait isn't serializable. This is just a better version.
Stupid Typesafe logging lib trait isn't serializable. This is just a better version.
A Top-K queue keeps a list of the top K elements seen so far as ordered by the given comparator.
A Top-K queue keeps a list of the top K elements seen so far as ordered by the given comparator.
- Companion
- object
A rich iterable extension that adds the topk method.
A rich iterable extension that adds the topk method.
Class that reads in objects serialized with breeze.util.writeObject, ignoring their serialversionuids, and then writes them to the same file.
Class that reads in objects serialized with breeze.util.writeObject, ignoring their serialversionuids, and then writes them to the same file.
Sort of like Conversion but intended to be restricted to core numeric types
Sort of like Conversion but intended to be restricted to core numeric types
- Companion
- object
Creates a copy of the array with its elements rearranged in such a way that the value of the element in kth position is in the position it would be in a sorted array. All elements smaller than the kth element are moved to the start of the array, all greater are moved to the end. Equal elements will be on the immeditate left or right. The ordering of the elements in the two partitions is undefined.
Creates a copy of the array with its elements rearranged in such a way that the value of the element in kth position is in the position it would be in a sorted array. All elements smaller than the kth element are moved to the start of the array, all greater are moved to the end. Equal elements will be on the immeditate left or right. The ordering of the elements in the two partitions is undefined.
Based on the numpy method of the same name. Docs lifted from numpy
Types
Value members
Concrete methods
Computes the source file location of the nth parent. 0 is equivalent to LOCATION
Computes the source file location of the nth parent. 0 is equivalent to LOCATION
Computes the current source file and line number.
Computes the current source file and line number.
Returns a string with info about the available and used space.
Returns a string with info about the available and used space.
For reasons that are best described as asinine, ObjectInputStream does not take into account Thread.currentThread.getContextClassLoader. This fixes that.
For reasons that are best described as asinine, ObjectInputStream does not take into account Thread.currentThread.getContextClassLoader. This fixes that.
- Value Params
- ignoreSerialVersionUID
this is not a safe thing to do, but sometimes...