sealed trait Vector extends Serializable
Represents a numeric vector, whose index type is Int and value type is Double.
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- @Since( "2.0.0" )
- Note
Users should not implement this interface.
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Abstract Value Members
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abstract
def
argmax: Int
Find the index of a maximal element.
Find the index of a maximal element. Returns the first maximal element in case of a tie. Returns -1 if vector has length 0.
- Annotations
- @Since( "2.0.0" )
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abstract
def
foreachActive(f: (Int, Double) ⇒ Unit): Unit
Applies a function
fto all the active elements of dense and sparse vector.Applies a function
fto all the active elements of dense and sparse vector.- f
the function takes two parameters where the first parameter is the index of the vector with type
Int, and the second parameter is the corresponding value with typeDouble.
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- @Since( "2.0.0" )
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abstract
def
numActives: Int
Number of active entries.
Number of active entries. An "active entry" is an element which is explicitly stored, regardless of its value. Note that inactive entries have value 0.
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- @Since( "2.0.0" )
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abstract
def
numNonzeros: Int
Number of nonzero elements.
Number of nonzero elements. This scans all active values and count nonzeros.
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- @Since( "2.0.0" )
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abstract
def
size: Int
Size of the vector.
Size of the vector.
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- @Since( "2.0.0" )
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abstract
def
toArray: Array[Double]
Converts the instance to a double array.
Converts the instance to a double array.
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- @Since( "2.0.0" )
Concrete Value Members
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final
def
!=(arg0: Any): Boolean
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final
def
##(): Int
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final
def
==(arg0: Any): Boolean
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def
apply(i: Int): Double
Gets the value of the ith element.
Gets the value of the ith element.
- i
index
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- @Since( "2.0.0" )
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final
def
asInstanceOf[T0]: T0
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def
clone(): AnyRef
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- protected[java.lang]
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def
compressed: Vector
Returns a vector in either dense or sparse format, whichever uses less storage.
Returns a vector in either dense or sparse format, whichever uses less storage.
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- @Since( "2.0.0" )
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def
copy: Vector
Makes a deep copy of this vector.
Makes a deep copy of this vector.
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- @Since( "2.0.0" )
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final
def
eq(arg0: AnyRef): Boolean
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def
equals(other: Any): Boolean
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def
finalize(): Unit
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final
def
getClass(): Class[_]
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def
hashCode(): Int
Returns a hash code value for the vector.
Returns a hash code value for the vector. The hash code is based on its size and its first 128 nonzero entries, using a hash algorithm similar to
java.util.Arrays.hashCode.- Definition Classes
- Vector → AnyRef → Any
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final
def
isInstanceOf[T0]: Boolean
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final
def
ne(arg0: AnyRef): Boolean
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final
def
notify(): Unit
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final
def
notifyAll(): Unit
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final
def
synchronized[T0](arg0: ⇒ T0): T0
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def
toDense: DenseVector
Converts this vector to a dense vector.
Converts this vector to a dense vector.
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- @Since( "2.0.0" )
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def
toSparse: SparseVector
Converts this vector to a sparse vector with all explicit zeros removed.
Converts this vector to a sparse vector with all explicit zeros removed.
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- @Since( "2.0.0" )
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def
toString(): String
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final
def
wait(): Unit
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final
def
wait(arg0: Long, arg1: Int): Unit
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final
def
wait(arg0: Long): Unit
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