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## weka.core.matrix
Class IntVector

    java.lang.Object
      weka.core.matrix.IntVector

All Implemented Interfaces:
  java.lang.Cloneable, RevisionHandler

    public class IntVector

extends java.lang.Object
implements java.lang.Cloneable, RevisionHandler

A vector specialized on integers.

Version:
  $Revision: 1.4 $
Author:
  Yong Wang

Constructor Summary
`IntVector()` Constructs a null vector.
`IntVector(int n)` Constructs an n-vector of zeros.
`IntVector(int[] v)` Constructs a vector given an int array
`IntVector(int n, int s)` Constructs an n-vector of a constant

Method Summary
`int` | `capacity()` Returns the capacity of the vector
`java.lang.Object` | `clone()` Clones the IntVector object.
`IntVector` | `copy()` Makes a deep copy of the vector
`int` | `get(int i)` Gets the value of an element.
`int[]` | `getArray()` Access the internal one-dimensional array.
`int[]` | `getArrayCopy()` Returns a copy of the internal one-dimensional array.
`java.lang.String` | `getRevision()` Returns the revision string.
`boolean` | `isEmpty()` Returns true if the vector is empty
`static void` | `main(java.lang.String[] args)` Tests the IntVector class
`static IntVector` | `seq(int i0, int i1)` Generates an IntVector that stores all integers inclusively between two integers.
`void` | `set(int s)` Sets the value of an element.
`void` | `set(int i, int s)` Sets a single element.
`void` | `set(int i0, int i1, int[] v, int j0)` Sets the values of elements from an int array.
`void` | `set(int i0, int i1, IntVector v, int j0)` Sets the values of elements from another IntVector.
`void` | `set(IntVector v)` Sets the values of elements from another IntVector.
`void` | `setCapacity(int capacity)` Sets the capacity of the vector
`void` | `setSize(int size)` Sets the size of the vector.
`void` | `shift(int i, int j)` Shifts an element to another position.
`void` | `shiftToEnd(int j)` Shifts an element to the end of the vector.
`int` | `size()` Gets the size of the vector.
`void` | `sort()` Sorts the elements in place
`IntVector` | `subvector(int i0, int i1)` Returns a subvector.
`IntVector` | `subvector(IntVector index)` Returns a subvector as indexed by an IntVector.
`void` | `swap(int i, int j)` Swaps the values stored at i and j
`java.lang.String` | `toString()` Converts the IntVecor to a string
`java.lang.String` | `toString(int digits, boolean trailing)` Convert the IntVecor to a string

Methods inherited from class java.lang.Object
`equals, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Constructor Detail

### IntVector

    public IntVector()

  Constructs a null vector.

### IntVector

    public IntVector(int n)

  Constructs an n-vector of zeros.

  Parameters:
    `n` - Length.

### IntVector

    public IntVector(int n,
                     int s)

  Constructs an n-vector of a constant

  Parameters:
    `n` - Length.

### IntVector

    public IntVector(int[] v)

  Constructs a vector given an int array

  Parameters:
    `v` - the int array

Method Detail

### size

    public int size()

  Gets the size of the vector.

  Returns:
    Size.

### setSize

    public void setSize(int size)

  Sets the size of the vector. The provided size can't be greater than the capacity of the vector.

  Parameters:
    `size` - the new Size.

### set

    public void set(int s)

  Sets the value of an element.

  Parameters:
    `s` - the value for the element

### set

    public void set(int i0,
                    int i1,
                    int[] v,
                    int j0)

  Sets the values of elements from an int array.

  Parameters:
    `i0` - the index of the first element
    `i1` - the index of the last element
    `v` - the int array that stores the values
    `j0` - the index of the first element in the int array

### set

    public void set(int i0,
                    int i1,
                    IntVector v,
                    int j0)

  Sets the values of elements from another IntVector.

  Parameters:
    `i0` - the index of the first element
    `i1` - the index of the last element
    `v` - the IntVector that stores the values
    `j0` - the index of the first element in the IntVector

### set

    public void set(IntVector v)

  Sets the values of elements from another IntVector.

  Parameters:
    `v` - the IntVector that stores the values

### seq

    public static IntVector seq(int i0,
                                int i1)

  Generates an IntVector that stores all integers inclusively between two integers.

  Parameters:
    `i0` - the first integer
    `i1` - the second integer

### getArray

    public int[] getArray()

  Access the internal one-dimensional array.

  Returns:
    Pointer to the one-dimensional array of vector elements.

### sort

    public void sort()

  Sorts the elements in place

### getArrayCopy

    public int[] getArrayCopy()

  Returns a copy of the internal one-dimensional array.

  Returns:
    One-dimensional array copy of vector elements.

### capacity

    public int capacity()

  Returns the capacity of the vector

### setCapacity

    public void setCapacity(int capacity)

  Sets the capacity of the vector

  Parameters:
    `capacity` - the new capacity of the vector

### set

    public void set(int i,
                    int s)

  Sets a single element.

  Parameters:
    `i` - the index of the element
    `s` - the new value

### get

    public int get(int i)

  Gets the value of an element.

  Parameters:
    `i` - the index of the element
  Returns:
    the value of the element

### copy

    public IntVector copy()

  Makes a deep copy of the vector

### clone

    public java.lang.Object clone()

  Clones the IntVector object.

  Overrides:
    `clone` in class `java.lang.Object`

### subvector

    public IntVector subvector(int i0,
                               int i1)

  Returns a subvector.

  Parameters:
    `i0` - the index of the first element
    `i1` - the index of the last element
  Returns:
    the subvector

### subvector

    public IntVector subvector(IntVector index)

  Returns a subvector as indexed by an IntVector.

  Parameters:
    `index` - the index
  Returns:
    the subvector

### swap

    public void swap(int i,
                     int j)

  Swaps the values stored at i and j

  Parameters:
    `i` - the index i
    `j` - the index j

### shift

    public void shift(int i,
                      int j)

  Shifts an element to another position. Elements between them are shifted one position left.

  Parameters:
    `i` - the index of the element
    `j` - the index of the new position

### shiftToEnd

    public void shiftToEnd(int j)

  Shifts an element to the end of the vector. Elements between them are shifted one position left.

  Parameters:
    `j` - the index of the element

### isEmpty

    public boolean isEmpty()

  Returns true if the vector is empty

### toString

    public java.lang.String toString()

  Converts the IntVecor to a string

  Overrides:
    `toString` in class `java.lang.Object`

### toString

    public java.lang.String toString(int digits,
                                     boolean trailing)

  Convert the IntVecor to a string

  Parameters:
    `digits` - number of digits to be shown
    `trailing` - true if trailing zeros are to be shown

### getRevision

    public java.lang.String getRevision()

  Returns the revision string.

  Specified by:
    `getRevision` in interface `RevisionHandler`
  Returns:
    the revision

### main

    public static void main(java.lang.String[] args)

  Tests the IntVector class

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