Warning: This API is deprecated and will be removed in a future
version of TensorFlow after
the replacement is stable.
Unique
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Finds unique elements along an axis of a tensor.
This operation either returns a tensor `y` containing unique elements
along the `axis` of a tensor. The returned unique elements is sorted
in the same order as they occur along `axis` in `x`.
This operation also returns a tensor `idx` that is the same size as
the number of the elements in `x` along the `axis` dimension. It
contains the index in the unique output `y`.
In other words, for an `1-D` tensor `x` with `axis = None:
`y[idx[i]] = x[i] for i in [0, 1,...,rank(x) - 1]`
For example:
# tensor 'x' is [1, 1, 2, 4, 4, 4, 7, 8, 8]
y, idx = unique(x)
y ==> [1, 2, 4, 7, 8]
idx ==> [0, 0, 1, 2, 2, 2, 3, 4, 4]
For an `2-D` tensor `x` with `axis = 0`:
# tensor 'x' is [[1, 0, 0],
# [1, 0, 0],
# [2, 0, 0]]
y, idx = unique(x, axis=0)
y ==> [[1, 0, 0],
[2, 0, 0]]
idx ==> [0, 0, 1]
For an `2-D` tensor `x` with `axis = 1`:
# tensor 'x' is [[1, 0, 0],
# [1, 0, 0],
# [2, 0, 0]]
y, idx = unique(x, axis=1)
y ==> [[1, 0],
[1, 0],
[2, 0]]
idx ==> [0, 1, 1]
Public Methods
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static
<T, V extends Number, U extends Number>
Unique<T, V>
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create( Scope scope, Operand<T> x, Operand<U> axis, Class<V> outIdx)
Factory method to create a class wrapping a new Unique operation.
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static
<T, U extends Number>
Unique<T, Integer>
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create( Scope scope, Operand<T> x, Operand<U> axis)
Factory method to create a class wrapping a new Unique operation using default output types.
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Output<V>
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|
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Output<T>
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|
Inherited Methods
From class
java.lang.Object
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boolean
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equals(Object arg0)
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final
Class<?>
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getClass()
|
|
int
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hashCode()
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final
void
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notify()
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final
void
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notifyAll()
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String
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toString()
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final
void
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wait(long arg0, int arg1)
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final
void
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wait(long arg0)
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final
void
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wait()
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Public Methods
public
static
Unique<T, V>
create
(Scope scope, Operand<T> x, Operand<U> axis, Class<V> outIdx)
Factory method to create a class wrapping a new Unique operation.
Parameters
| scope |
current scope |
| x |
A `Tensor`. |
| axis |
A `Tensor` of type `int32` (default: None). The axis of the Tensor to
find the unique elements. |
public
static
Unique<T, Integer>
create
(Scope scope, Operand<T> x, Operand<U> axis)
Factory method to create a class wrapping a new Unique operation using default output types.
Parameters
| scope |
current scope |
| x |
A `Tensor`. |
| axis |
A `Tensor` of type `int32` (default: None). The axis of the Tensor to
find the unique elements. |
public
Output<V>
idx
()
A 1-D Tensor. Has the same type as x that contains the index of each
value of x in the output y.
public
Output<T>
y
()
A `Tensor`. Unique elements along the `axis` of `Tensor` x.
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Last updated 2022-02-12 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2022-02-12 UTC."],[],[],null,["# Unique\n\npublic final class **Unique** \nFinds unique elements along an axis of a tensor.\n\n\nThis operation either returns a tensor \\`y\\` containing unique elements\nalong the \\`axis\\` of a tensor. The returned unique elements is sorted\nin the same order as they occur along \\`axis\\` in \\`x\\`.\nThis operation also returns a tensor \\`idx\\` that is the same size as\nthe number of the elements in \\`x\\` along the \\`axis\\` dimension. It\ncontains the index in the unique output \\`y\\`.\nIn other words, for an \\`1-D\\` tensor \\`x\\` with \\`axis = None:\n\n\n\\`y\\[idx\\[i\\]\\] = x\\[i\\] for i in \\[0, 1,...,rank(x) - 1\\]\\`\n\n\nFor example: \n\n # tensor 'x' is [1, 1, 2, 4, 4, 4, 7, 8, 8]\n y, idx = unique(x)\n y ==> [1, 2, 4, 7, 8]\n idx ==> [0, 0, 1, 2, 2, 2, 3, 4, 4]\n \nFor an \\`2-D\\` tensor \\`x\\` with \\`axis = 0\\`: \n\n # tensor 'x' is [[1, 0, 0],\n # [1, 0, 0],\n # [2, 0, 0]]\n y, idx = unique(x, axis=0)\n y ==> [[1, 0, 0],\n [2, 0, 0]]\n idx ==> [0, 0, 1]\n \nFor an \\`2-D\\` tensor \\`x\\` with \\`axis = 1\\`: \n\n # tensor 'x' is [[1, 0, 0],\n # [1, 0, 0],\n # [2, 0, 0]]\n y, idx = unique(x, axis=1)\n y ==> [[1, 0],\n [1, 0],\n [2, 0]]\n idx ==> [0, 1, 1]\n \n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n### Public Methods\n\n|-----------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| static \\\u003cT, V extends Number, U extends Number\\\u003e [Unique](/api_docs/java/org/tensorflow/op/core/Unique)\\\u003cT, V\\\u003e | [create](/api_docs/java/org/tensorflow/op/core/Unique#create(org.tensorflow.op.Scope,%20org.tensorflow.Operand\u003cT\u003e,%20org.tensorflow.Operand\u003cU\u003e,%20java.lang.Class\u003cV\u003e))([Scope](/api_docs/java/org/tensorflow/op/Scope) scope, [Operand](/api_docs/java/org/tensorflow/Operand)\\\u003cT\\\u003e x, [Operand](/api_docs/java/org/tensorflow/Operand)\\\u003cU\\\u003e axis, Class\\\u003cV\\\u003e outIdx) Factory method to create a class wrapping a new Unique operation. |\n| static \\\u003cT, U extends Number\\\u003e [Unique](/api_docs/java/org/tensorflow/op/core/Unique)\\\u003cT, Integer\\\u003e | [create](/api_docs/java/org/tensorflow/op/core/Unique#create(org.tensorflow.op.Scope,%20org.tensorflow.Operand\u003cT\u003e,%20org.tensorflow.Operand\u003cU\u003e))([Scope](/api_docs/java/org/tensorflow/op/Scope) scope, [Operand](/api_docs/java/org/tensorflow/Operand)\\\u003cT\\\u003e x, [Operand](/api_docs/java/org/tensorflow/Operand)\\\u003cU\\\u003e axis) Factory method to create a class wrapping a new Unique operation using default output types. |\n| [Output](/api_docs/java/org/tensorflow/Output)\\\u003cV\\\u003e | [idx](/api_docs/java/org/tensorflow/op/core/Unique#idx())() A 1-D Tensor. |\n| [Output](/api_docs/java/org/tensorflow/Output)\\\u003cT\\\u003e | [y](/api_docs/java/org/tensorflow/op/core/Unique#y())() A \\`Tensor\\`. |\n\n### Inherited Methods\n\nFrom class [org.tensorflow.op.PrimitiveOp](/api_docs/java/org/tensorflow/op/PrimitiveOp) \n\n|------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------|\n| final boolean | [equals](/api_docs/java/org/tensorflow/op/PrimitiveOp#equals(java.lang.Object))(Object obj) |\n| final int | [hashCode](/api_docs/java/org/tensorflow/op/PrimitiveOp#hashCode())() |\n| [Operation](/api_docs/java/org/tensorflow/Operation) | [op](/api_docs/java/org/tensorflow/op/PrimitiveOp#op())() Returns the underlying [Operation](/api_docs/java/org/tensorflow/Operation) |\n| final String | [toString](/api_docs/java/org/tensorflow/op/PrimitiveOp#toString())() |\n\nFrom class java.lang.Object \n\n|------------------|---------------------------|\n| boolean | equals(Object arg0) |\n| final Class\\\u003c?\\\u003e | getClass() |\n| int | hashCode() |\n| final void | notify() |\n| final void | notifyAll() |\n| String | toString() |\n| final void | wait(long arg0, int arg1) |\n| final void | wait(long arg0) |\n| final void | wait() |\n\nPublic Methods\n--------------\n\n#### public static [Unique](/api_docs/java/org/tensorflow/op/core/Unique)\\\u003cT, V\\\u003e\n**create**\n([Scope](/api_docs/java/org/tensorflow/op/Scope) scope, [Operand](/api_docs/java/org/tensorflow/Operand)\\\u003cT\\\u003e x, [Operand](/api_docs/java/org/tensorflow/Operand)\\\u003cU\\\u003e axis, Class\\\u003cV\\\u003e outIdx)\n\nFactory method to create a class wrapping a new Unique operation. \n\n##### Parameters\n\n| scope | current scope |\n| x | A \\`Tensor\\`. |\n| axis | A \\`Tensor\\` of type \\`int32\\` (default: None). The axis of the Tensor to find the unique elements. |\n|-------|-----------------------------------------------------------------------------------------------------|\n\n##### Returns\n\n- a new instance of Unique \n\n#### public static [Unique](/api_docs/java/org/tensorflow/op/core/Unique)\\\u003cT, Integer\\\u003e\n**create**\n([Scope](/api_docs/java/org/tensorflow/op/Scope) scope, [Operand](/api_docs/java/org/tensorflow/Operand)\\\u003cT\\\u003e x, [Operand](/api_docs/java/org/tensorflow/Operand)\\\u003cU\\\u003e axis)\n\nFactory method to create a class wrapping a new Unique operation using default output types. \n\n##### Parameters\n\n| scope | current scope |\n| x | A \\`Tensor\\`. |\n| axis | A \\`Tensor\\` of type \\`int32\\` (default: None). The axis of the Tensor to find the unique elements. |\n|-------|-----------------------------------------------------------------------------------------------------|\n\n##### Returns\n\n- a new instance of Unique \n\n#### public [Output](/api_docs/java/org/tensorflow/Output)\\\u003cV\\\u003e\n**idx**\n()\n\nA 1-D Tensor. Has the same type as x that contains the index of each\nvalue of x in the output y. \n\n#### public [Output](/api_docs/java/org/tensorflow/Output)\\\u003cT\\\u003e\n**y**\n()\n\nA \\`Tensor\\`. Unique elements along the \\`axis\\` of \\`Tensor\\` x."]]
