IntColumn

java.lang.Object
- org.datavec.dataframe.columns.AbstractColumn
- - org.datavec.dataframe.api.IntColumn

All Implemented Interfaces:

it.unimi.dsi.fastutil.ints.IntIterable, java.lang.Iterable<java.lang.Integer>, NumericColumn, Column, IntColumnUtils, IntMapUtils
```
public class IntColumn
extends AbstractColumn
implements IntMapUtils, NumericColumn
```
A column that contains signed 4 byte integer values

Field Summary

Fields
Modifier and Type Field and Description

static int MISSING_VALUE
- Fields inherited from interface org.datavec.dataframe.columns.IntColumnUtils
  isEqualTo, isEven, isGreaterThan, isGreaterThanOrEqualTo, isLessThan, isLessThanOrEqualTo, isMissing, isNegative, isNonNegative, isNotEqualTo, isNotMissing, isOdd, isPositive, isZero

Fields
Modifier and Type	Field and Description
`static int`	`MISSING_VALUE`

Constructor Summary

Constructors
Constructor and Description

IntColumn(ColumnMetadata metadata)

IntColumn(java.lang.String name)

IntColumn(java.lang.String name, int initialSize)

Constructors
Constructor and Description
`IntColumn(ColumnMetadata metadata)`
`IntColumn(java.lang.String name)`
`IntColumn(java.lang.String name, int initialSize)`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`add(int i)`
`IntColumn`	`add(IntColumn column2)`
`void`	`addCell(java.lang.String object)`
`void`	`append(Column column)`
`byte[]`	`asBytes(int rowNumber)` Returns the contents of the cell at rowNumber as a byte[]
`it.unimi.dsi.fastutil.ints.IntSet`	`asSet()`
`it.unimi.dsi.fastutil.ints.IntArrayList`	`bottom(int n)` Returns the smallest ("bottom") n values in the column
`int`	`byteSize()` Returns the width of a cell in this column, in bytes
`void`	`clear()`
`boolean`	`contains(int i)`
`static int`	`convert(java.lang.String stringValue)` Returns a float that is parsed from the given String
`IntColumn`	`copy()` Returns a deep copy of the receiver
`long`	`countIf(IntPredicate predicate)`
`int`	`countMissing()` Returns the count of missing values in this column
`int`	`countUnique()` Returns the count of unique values in this column
`static IntColumn`	`create(ColumnMetadata metadata)`
`static IntColumn`	`create(java.lang.String name)`
`static IntColumn`	`create(java.lang.String name, int arraySize)`
`static IntColumn`	`create(java.lang.String name, it.unimi.dsi.fastutil.ints.IntArrayList ints)`
`it.unimi.dsi.fastutil.ints.IntArrayList`	`data()`
`IntColumn`	`difference()` Returns a new column of the same type as the receiver, such that the values in the new column contain the difference between each cell in the original and it's predecessor.
`FloatColumn`	`divide(FloatColumn column2)`
`IntColumn`	`emptyCopy()` Returns a copy of the receiver with no data.
`IntColumn`	`emptyCopy(int rowSize)` Returns an empty copy of the receiver, with its internal storage initialized to the given row size
`int`	`firstElement()`
`double`	`geometricMean()`
`int`	`get(int index)`
`float`	`getFloat(int index)`
`java.lang.String`	`getString(int row)` Returns a string representation of the value at the given row
`boolean`	`isEmpty()` Returns true if the column has no data
`Selection`	`isEqualTo(int i)`
`Selection`	`isEqualTo(IntColumn other)`
`Selection`	`isEven()`
`Selection`	`isGreaterThan(int i)`
`Selection`	`isGreaterThanOrEqualTo(int i)`
`Selection`	`isLessThan(int i)`
`Selection`	`isLessThanOrEqualTo(int i)`
`Selection`	`isMissing()`
`Selection`	`isNegative()`
`Selection`	`isNonNegative()`
`Selection`	`isNotEqualTo(int i)`
`Selection`	`isNotMissing()`
`Selection`	`isOdd()`
`Selection`	`isPositive()`
`Selection`	`isZero()`
`it.unimi.dsi.fastutil.ints.IntIterator`	`iterator()`
`double`	`kurtosis()`
`double`	`max()`
`double`	`mean()`
`double`	`median()`
`double`	`min()`
`FloatColumn`	`multiply(FloatColumn column2)`
`IntColumn`	`multiply(IntColumn column2)`
`double`	`percentile(double percentile)`
`double`	`populationVariance()`
`java.lang.String`	`print()`
`double`	`product()`
`double`	`quadraticMean()` Returns the quadraticMean, aka the root-mean-square, for all values in this column
`double`	`quartile1()`
`double`	`quartile3()`
`double`	`range()`
`IntColumn`	`remainder(IntColumn column2)`
`it.unimi.dsi.fastutil.ints.IntComparator`	`rowComparator()`
`Selection`	`select(IntBiPredicate predicate, int value)`
`Selection`	`select(IntPredicate predicate)`
`IntColumn`	`select(Selection selection)`
`IntColumn`	`selectIf(IntPredicate predicate)`
`void`	`set(int index, int value)`
`int`	`size()`
`double`	`skewness()`
`void`	`sortAscending()`
`void`	`sortDescending()`
`double`	`standardDeviation()`
`Stats`	`stats()`
`IntColumn`	`subtract(IntColumn column2)`
`long`	`sum()`
`long`	`sumIf(IntPredicate predicate)`
`Table`	`summary()`
`double`	`sumOfLogs()`
`double`	`sumOfSquares()`
`double[]`	`toDoubleArray()`
`it.unimi.dsi.fastutil.floats.FloatArrayList`	`toFloatArray()`
`int[]`	`toIntArray()`
`it.unimi.dsi.fastutil.ints.IntArrayList`	`top(int n)` Returns the largest ("top") n values in the column
`java.lang.String`	`toString()`
`ColumnType`	`type()` Returns this column's ColumnType
`IntColumn`	`unique()` Returns a column of the same type as the receiver, containing only the unique values of the receiver
`double`	`variance()`

Methods inherited from class org.datavec.dataframe.columns.AbstractColumn
columnMetadata, columnWidth, comment, id, metadata, name, setComment, setName

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

Methods inherited from interface org.datavec.dataframe.mapping.IntMapUtils
asPercent, asRatio, difference, difference, divide, divide, divide, multiply, multiply, names, plus, plus

Methods inherited from interface org.datavec.dataframe.columns.Column
columnMetadata, columnWidth, comment, first, first, id, last, last, metadata, name, setComment, setName, subset, title

Methods inherited from interface java.lang.Iterable
forEach, spliterator

- Field Detail
  - MISSING_VALUE
```
public static final int MISSING_VALUE
```
- Constructor Detail
  - IntColumn
```
public IntColumn(java.lang.String name,
                 int initialSize)
```
  - IntColumn
```
public IntColumn(ColumnMetadata metadata)
```
  - IntColumn
```
public IntColumn(java.lang.String name)
```
- Method Detail
  - create
```
public static IntColumn create(java.lang.String name)
```
  - create
```
public static IntColumn create(ColumnMetadata metadata)
```
  - create
```
public static IntColumn create(java.lang.String name,
                               int arraySize)
```
  - create
```
public static IntColumn create(java.lang.String name,
                               it.unimi.dsi.fastutil.ints.IntArrayList ints)
```
  - data
```
public it.unimi.dsi.fastutil.ints.IntArrayList data()
```
  - size
```
public int size()
```
    Specified by:
    
    size in interface Column
  - type
```
public ColumnType type()
```
    Description copied from interface: Column
    
    Returns this column's ColumnType
    
    Specified by:
    
    type in interface Column
  - add
```
public void add(int i)
```
  - set
```
public void set(int index,
                int value)
```
  - isLessThan
```
public Selection isLessThan(int i)
```
  - isGreaterThan
```
public Selection isGreaterThan(int i)
```
  - isGreaterThanOrEqualTo
```
public Selection isGreaterThanOrEqualTo(int i)
```
  - isLessThanOrEqualTo
```
public Selection isLessThanOrEqualTo(int i)
```
  - isNotEqualTo
```
public Selection isNotEqualTo(int i)
```
  - isEqualTo
```
public Selection isEqualTo(int i)
```
  - isMissing
```
public Selection isMissing()
```
    Specified by:
    
    isMissing in interface Column
  - isNotMissing
```
public Selection isNotMissing()
```
    Specified by:
    
    isNotMissing in interface Column
  - isEqualTo
```
public Selection isEqualTo(IntColumn other)
```
  - summary
```
public Table summary()
```
    Specified by:
    
    summary in interface Column
  - countMissing
```
public int countMissing()
```
    Returns the count of missing values in this column
    
    Specified by:
    
    countMissing in interface Column
  - countUnique
```
public int countUnique()
```
    Description copied from interface: Column
    
    Returns the count of unique values in this column
    
    Specified by:
    
    countUnique in interface Column
  - unique
```
public IntColumn unique()
```
    Description copied from interface: Column
    
    Returns a column of the same type as the receiver, containing only the unique values of the receiver
    
    Specified by:
    
    unique in interface Column
  - asSet
```
public it.unimi.dsi.fastutil.ints.IntSet asSet()
```
  - getString
```
public java.lang.String getString(int row)
```
    Description copied from interface: Column
    
    Returns a string representation of the value at the given row
    
    Specified by:
    
    getString in interface Column
  - emptyCopy
```
public IntColumn emptyCopy()
```
    Description copied from interface: Column
    
    Returns a copy of the receiver with no data. The column name and type are the same
    
    Specified by:
    
    emptyCopy in interface Column
  - emptyCopy
```
public IntColumn emptyCopy(int rowSize)
```
    Description copied from interface: Column
    
    Returns an empty copy of the receiver, with its internal storage initialized to the given row size
    
    Specified by:
    
    emptyCopy in interface Column
  - clear
```
public void clear()
```
    Specified by:
    
    clear in interface Column
  - sortAscending
```
public void sortAscending()
```
    Specified by:
    
    sortAscending in interface Column
  - sortDescending
```
public void sortDescending()
```
    Specified by:
    
    sortDescending in interface Column
  - copy
```
public IntColumn copy()
```
    Description copied from interface: Column
    
    Returns a deep copy of the receiver
    
    Specified by:
    
    copy in interface Column
  - isEmpty
```
public boolean isEmpty()
```
    Description copied from interface: Column
    
    Returns true if the column has no data
    
    Specified by:
    
    isEmpty in interface Column
  - addCell
```
public void addCell(java.lang.String object)
```
    Specified by:
    
    addCell in interface Column
    
    Specified by:
    
    addCell in class AbstractColumn
  - convert
```
public static int convert(java.lang.String stringValue)
```
    Returns a float that is parsed from the given String
    We remove any commas before parsing
  - get
```
public int get(int index)
```
    Specified by:
    
    get in interface IntMapUtils
  - getFloat
```
public float getFloat(int index)
```
    Specified by:
    
    getFloat in interface NumericColumn
  - rowComparator
```
public it.unimi.dsi.fastutil.ints.IntComparator rowComparator()
```
    Specified by:
    
    rowComparator in interface Column
  - firstElement
```
public int firstElement()
```
  - sum
```
public long sum()
```
    Specified by:
    
    sum in interface IntMapUtils
  - product
```
public double product()
```
    Specified by:
    
    product in interface NumericColumn
  - mean
```
public double mean()
```
    Specified by:
    
    mean in interface NumericColumn
  - median
```
public double median()
```
    Specified by:
    
    median in interface NumericColumn
  - quartile1
```
public double quartile1()
```
    Specified by:
    
    quartile1 in interface NumericColumn
  - quartile3
```
public double quartile3()
```
    Specified by:
    
    quartile3 in interface NumericColumn
  - percentile
```
public double percentile(double percentile)
```
    Specified by:
    
    percentile in interface NumericColumn
  - range
```
public double range()
```
    Specified by:
    
    range in interface NumericColumn
  - max
```
public double max()
```
    Specified by:
    
    max in interface NumericColumn
  - min
```
public double min()
```
    Specified by:
    
    min in interface NumericColumn
  - variance
```
public double variance()
```
    Specified by:
    
    variance in interface NumericColumn
  - populationVariance
```
public double populationVariance()
```
    Specified by:
    
    populationVariance in interface NumericColumn
  - standardDeviation
```
public double standardDeviation()
```
    Specified by:
    
    standardDeviation in interface NumericColumn
  - sumOfLogs
```
public double sumOfLogs()
```
    Specified by:
    
    sumOfLogs in interface NumericColumn
  - sumOfSquares
```
public double sumOfSquares()
```
    Specified by:
    
    sumOfSquares in interface NumericColumn
  - geometricMean
```
public double geometricMean()
```
    Specified by:
    
    geometricMean in interface NumericColumn
  - quadraticMean
```
public double quadraticMean()
```
    Returns the quadraticMean, aka the root-mean-square, for all values in this column
    
    Specified by:
    
    quadraticMean in interface NumericColumn
  - kurtosis
```
public double kurtosis()
```
    Specified by:
    
    kurtosis in interface NumericColumn
  - skewness
```
public double skewness()
```
    Specified by:
    
    skewness in interface NumericColumn
  - isPositive
```
public Selection isPositive()
```
  - isNegative
```
public Selection isNegative()
```
  - isNonNegative
```
public Selection isNonNegative()
```
  - isZero
```
public Selection isZero()
```
  - isEven
```
public Selection isEven()
```
  - isOdd
```
public Selection isOdd()
```
  - toFloatArray
```
public it.unimi.dsi.fastutil.floats.FloatArrayList toFloatArray()
```
  - toIntArray
```
public int[] toIntArray()
```
  - toDoubleArray
```
public double[] toDoubleArray()
```
    Specified by:
    
    toDoubleArray in interface NumericColumn
    
    Specified by:
    
    toDoubleArray in interface Column
  - print
```
public java.lang.String print()
```
    Specified by:
    
    print in interface Column
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object
  - append
```
public void append(Column column)
```
    Specified by:
    
    append in interface Column
  - selectIf
```
public IntColumn selectIf(IntPredicate predicate)
```
  - select
```
public IntColumn select(Selection selection)
```
  - select
```
public Selection select(IntPredicate predicate)
```
  - select
```
public Selection select(IntBiPredicate predicate,
                        int value)
```
  - sumIf
```
public long sumIf(IntPredicate predicate)
```
  - countIf
```
public long countIf(IntPredicate predicate)
```
  - remainder
```
public IntColumn remainder(IntColumn column2)
```
  - add
```
public IntColumn add(IntColumn column2)
```
  - subtract
```
public IntColumn subtract(IntColumn column2)
```
  - multiply
```
public IntColumn multiply(IntColumn column2)
```
  - multiply
```
public FloatColumn multiply(FloatColumn column2)
```
  - divide
```
public FloatColumn divide(FloatColumn column2)
```
  - top
```
public it.unimi.dsi.fastutil.ints.IntArrayList top(int n)
```
    Returns the largest ("top") n values in the column
    
    Parameters:
    
    n - The maximum number of records to return. The actual number will be smaller if n is greater than the number of observations in the column
    
    Returns:
    
    A list, possibly empty, of the largest observations
  - bottom
```
public it.unimi.dsi.fastutil.ints.IntArrayList bottom(int n)
```
    Returns the smallest ("bottom") n values in the column
    
    Parameters:
    
    n - The maximum number of records to return. The actual number will be smaller if n is greater than the number of observations in the column
    
    Returns:
    
    A list, possibly empty, of the smallest n observations
  - iterator
```
public it.unimi.dsi.fastutil.ints.IntIterator iterator()
```
    Specified by:
    
    iterator in interface it.unimi.dsi.fastutil.ints.IntIterable
    
    Specified by:
    
    iterator in interface java.lang.Iterable<java.lang.Integer>
  - stats
```
public Stats stats()
```
  - contains
```
public boolean contains(int i)
```
  - byteSize
```
public int byteSize()
```
    Description copied from interface: Column
    
    Returns the width of a cell in this column, in bytes
    
    Specified by:
    
    byteSize in interface Column
  - asBytes
```
public byte[] asBytes(int rowNumber)
```
    Returns the contents of the cell at rowNumber as a byte[]
    
    Specified by:
    
    asBytes in interface Column
  - difference
```
public IntColumn difference()
```
    Description copied from interface: Column
    
    Returns a new column of the same type as the receiver, such that the values in the new column contain the difference between each cell in the original and it's predecessor. The Missing Value Indicator is used for the first cell in the new column. (e.g. IntColumn.MISSING_VALUE)
    
    Specified by:
    
    difference in interface Column
    
    Overrides:
    
    difference in class AbstractColumn

Class IntColumn

Field Summary

Fields inherited from interface org.datavec.dataframe.columns.IntColumnUtils

Constructor Summary

Method Summary

Methods inherited from class org.datavec.dataframe.columns.AbstractColumn

Methods inherited from class java.lang.Object

Methods inherited from interface org.datavec.dataframe.mapping.IntMapUtils

Methods inherited from interface org.datavec.dataframe.columns.Column

Methods inherited from interface java.lang.Iterable

Field Detail

MISSING_VALUE

Constructor Detail

IntColumn

IntColumn

IntColumn

Method Detail

create

create

create

create

data

size

type

add

set

isLessThan

isGreaterThan

isGreaterThanOrEqualTo

isLessThanOrEqualTo

isNotEqualTo

isEqualTo

isMissing

isNotMissing

isEqualTo

summary

countMissing

countUnique

unique

asSet

getString

emptyCopy

emptyCopy

clear

sortAscending

sortDescending

copy

isEmpty

addCell

convert

get

getFloat

rowComparator

firstElement

sum

product

mean

median

quartile1

quartile3

percentile

range

max

min

variance

populationVariance

standardDeviation

sumOfLogs

sumOfSquares

geometricMean

quadraticMean

kurtosis

skewness

isPositive

isNegative

isNonNegative

isZero

isEven

isOdd

toFloatArray