NumberColumn (tablesaw-core 0.25.1 API)

All Superinterfaces:

CategoricalColumn<Double>, Column<Double>, Comparator<Double>, DoubleIterable, Iterable<Double>, NumberFillers<NumberColumn>, NumberFilters, NumberMapFunctions

All Known Implementing Classes:

DoubleColumn
```
public interface NumberColumn
extends NumberMapFunctions, DoubleIterable, NumberFilters, NumberFillers<NumberColumn>, CategoricalColumn<Double>
```

Field Summary

Fields
Modifier and Type Field Description

static double MISSING_VALUE

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

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`NumberColumn`	`append(double d)`
`NumberColumn`	`append(float f)`
`NumberColumn`	`append(int i)`
`NumberColumn`	`appendCell(String object)`
`NumberColumn`	`appendMissing()`	Appends a missing value appropriate to the column
`byte[]`	`asBytes(int rowNumber)`	Returns the contents of the cell at rowNumber as a byte[].
`DateTimeColumn`	`asDateTimes(ZoneOffset offset)`	Returns a DateTimeColumn where each value is the LocalDateTime represented by the values in this column The values in this column must be longs that represent the time in milliseconds from the epoch as in standard Java date/time calculations
`double[]`	`asDoubleArray()`
`int[]`	`asIntArray()`
`it.unimi.dsi.fastutil.doubles.DoubleSet`	`asSet()`
`it.unimi.dsi.fastutil.doubles.DoubleArrayList`	`bottom(int n)`
`int`	`byteSize()`	Returns the width of a cell in this column, in bytes.
`void`	`clear()`
`boolean`	`contains(double value)`
`NumberColumn`	`copy()`	Returns a deep copy of the receiver
`default int`	`countMissing()`	Returns the count of missing values in this column
`default int`	`countUnique()`	Returns the number of unique values in this column, excluding missing values
`it.unimi.dsi.fastutil.doubles.DoubleList`	`dataInternal()`	Returns a clone of the internal data structure
`NumberColumn`	`emptyCopy()`	Returns a copy of the receiver with no data.
`NumberColumn`	`emptyCopy(int rowSize)`	Returns an empty copy of the receiver, with its internal storage initialized to the given row size.
`Selection`	`eval(DoublePredicate predicate)`
`Selection`	`eval(DoubleBiPredicate predicate, Number value)`
`Selection`	`eval(DoubleBiPredicate predicate, NumberColumn otherColumn)`
`Selection`	`eval(DoubleRangePredicate predicate, Number rangeStart, Number rangeEnd)`
`double`	`firstElement()`
`default double`	`geometricMean()`
`double`	`getDouble(int row)`	Returns a double representation of the value at the given row.
`long`	`getLong(int i)`
`String`	`getString(int row)`	Returns a string representation of the value at the given row.
`String`	`getUnformattedString(int row)`
`boolean`	`isEmpty()`	Returns true if the column has no data
`Selection`	`isIn(Number... numbers)`
`default Selection`	`isMissing()`
`boolean`	`isMissing(int rowNumber)`
`Selection`	`isNotIn(Number... numbers)`
`default Selection`	`isNotMissing()`
`default double`	`kendalls(NumberColumn otherColumn)`	Returns the Kendall's Tau Rank correlation between the receiver and the otherColumn
`default double`	`kurtosis()`
`default double`	`max()`
`default double`	`mean()`
`default double`	`median()`
`default double`	`min()`
`default double`	`pearsons(NumberColumn otherColumn)`	Returns the pearson's correlation between the receiver and the otherColumn
`default double`	`percentile(double percentile)`
`default double`	`populationVariance()`
`default double`	`product()`
`default double`	`quadraticMean()`	Returns the quadraticMean, aka the root-mean-square, for all values in this column
`default double`	`quartile1()`
`default double`	`quartile3()`
`default double`	`range()`
`Integer`	`roundInt(int i)`
`it.unimi.dsi.fastutil.ints.IntComparator`	`rowComparator()`
`NumberColumn`	`set(int r, double value)`
`NumberColumn`	`set(Selection rowSelection, double newValue)`
`void`	`setPrintFormatter(NumberFormat format, String missingValueString)`
`void`	`setPrintFormatter(NumberColumnFormatter formatter)`
`int`	`size()`
`default double`	`skewness()`
`void`	`sortAscending()`
`void`	`sortDescending()`
`default double`	`spearmans(NumberColumn otherColumn)`	Returns the Spearman's Rank correlation between the receiver and the otherColumn
`default double`	`standardDeviation()`
`Stats`	`stats()`
`default double`	`sum()`
`default Double`	`summarizeIf(Selection selection, NumericAggregateFunction function)`
`Table`	`summary()`
`default double`	`sumOfLogs()`
`default double`	`sumOfSquares()`
`it.unimi.dsi.fastutil.doubles.DoubleArrayList`	`top(int n)`
`NumberColumn`	`unique()`	Returns a column of the same type as the receiver, containing only the unique values of the receiver.
`static boolean`	`valueIsMissing(double value)`
`default double`	`variance()`
`NumberColumn`	`where(Selection selection)`

Methods inherited from interface tech.tablesaw.api.CategoricalColumn
asIntegerSet, countByCategory

Methods inherited from interface tech.tablesaw.columns.Column
append, append, appendCell, asObjectArray, columnWidth, create, doWithEach, fillMissing, fillMissing, first, get, inRange, lag, last, lead, name, print, removeMissing, rolling, rows, sampleN, sampleX, set, setName, subset, title, type

Methods inherited from interface java.util.Comparator
compare, comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Methods inherited from interface tech.tablesaw.columns.numbers.DoubleIterable
doubleIterator

Methods inherited from interface tech.tablesaw.columns.numbers.NumberFillers
fillWith, fillWith, fillWith

Methods inherited from interface tech.tablesaw.columns.numbers.NumberFilters
eval, isBetweenExclusive, isBetweenInclusive, isCloseTo, isEqualTo, isEqualTo, isGreaterThan, isGreaterThan, isGreaterThanOrEqualTo, isGreaterThanOrEqualTo, isIn, isLessThan, isLessThan, isLessThanOrEqualTo, isLessThanOrEqualTo, isNegative, isNonNegative, isNotEqualTo, isNotEqualTo, isNotIn, isPositive, isZero

Methods inherited from interface tech.tablesaw.columns.numbers.NumberMapFunctions
abs, add, add, add, asPercent, asRatio, bin, cube, cubeRoot, cumProd, cumSum, difference, divide, divide, divide, log10, log1p, logN, multiply, multiply, multiply, name, neg, normalize, pctChange, power, remainder, round, roundInt, sqrt, square, subtract, subtract, subtract

- Field Detail
  - MISSING_VALUE
```
static final double MISSING_VALUE
```
- Method Detail
  - valueIsMissing
```
static boolean valueIsMissing(double value)
```
  - isMissing
```
boolean isMissing(int rowNumber)
```
    Specified by:
    
    isMissing in interface Column<Double>
  - setPrintFormatter
```
void setPrintFormatter(NumberFormat format,
                       String missingValueString)
```
  - setPrintFormatter
```
void setPrintFormatter(NumberColumnFormatter formatter)
```
  - size
```
int size()
```
    Specified by:
    
    size in interface Column<Double>
    
    Specified by:
    
    size in interface NumberMapFunctions
  - summary
```
Table summary()
```
    Specified by:
    
    summary in interface Column<Double>
  - stats
```
Stats stats()
```
  - top
```
it.unimi.dsi.fastutil.doubles.DoubleArrayList top(int n)
```
  - bottom
```
it.unimi.dsi.fastutil.doubles.DoubleArrayList bottom(int n)
```
  - unique
```
NumberColumn 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<Double>
    
    Returns:
    
    a Column
  - firstElement
```
double firstElement()
```
  - append
```
NumberColumn append(float f)
```
  - append
```
NumberColumn append(double d)
```
  - append
```
NumberColumn append(int i)
```
  - getString
```
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<Double>
    
    Parameters:
    
    row - The index of the row.
    
    Returns:
    
    value as String
  - getDouble
```
double getDouble(int row)
```
    Description copied from interface: Column
    
    Returns a double representation of the value at the given row. The nature of the returned value is column-specific. The double returned MAY be the actual value (for Number columns) but is more likely a number that maps to the column value in some way.
    
    Specified by:
    
    getDouble in interface Column<Double>
    
    Specified by:
    
    getDouble in interface NumberMapFunctions
    
    Parameters:
    
    row - The index of the row.
    
    Returns:
    
    value as String
  - getUnformattedString
```
String getUnformattedString(int row)
```
    Specified by:
    
    getUnformattedString in interface Column<Double>
  - emptyCopy
```
NumberColumn 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<Double>
    
    Returns:
    
    a empty copy of Column
  - emptyCopy
```
NumberColumn 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<Double>
    
    Parameters:
    
    rowSize - the initial row size
    
    Returns:
    
    a Column
  - copy
```
NumberColumn copy()
```
    Description copied from interface: Column
    
    Returns a deep copy of the receiver
    
    Specified by:
    
    copy in interface Column<Double>
    
    Returns:
    
    a Column
  - clear
```
void clear()
```
    Specified by:
    
    clear in interface Column<Double>
  - sortAscending
```
void sortAscending()
```
    Specified by:
    
    sortAscending in interface Column<Double>
  - sortDescending
```
void sortDescending()
```
    Specified by:
    
    sortDescending in interface Column<Double>
  - isEmpty
```
boolean isEmpty()
```
    Description copied from interface: Column
    
    Returns true if the column has no data
    
    Specified by:
    
    isEmpty in interface Column<Double>
    
    Specified by:
    
    isEmpty in interface NumberMapFunctions
    
    Returns:
    
    true if empty, false if not
  - appendCell
```
NumberColumn appendCell(String object)
```
    Specified by:
    
    appendCell in interface Column<Double>
  - roundInt
```
Integer roundInt(int i)
```
  - getLong
```
long getLong(int i)
```
  - summarizeIf
```
default Double summarizeIf(Selection selection,
                           NumericAggregateFunction function)
```
  - rowComparator
```
it.unimi.dsi.fastutil.ints.IntComparator rowComparator()
```
    Specified by:
    
    rowComparator in interface Column<Double>
  - set
```
NumberColumn set(int r,
                 double value)
```
  - set
```
NumberColumn set(Selection rowSelection,
                 double newValue)
```
  - asDoubleArray
```
double[] asDoubleArray()
```
    Specified by:
    
    asDoubleArray in interface Column<Double>
    
    Specified by:
    
    asDoubleArray in interface NumberMapFunctions
  - where
```
NumberColumn where(Selection selection)
```
    Specified by:
    
    where in interface Column<Double>
  - eval
```
Selection eval(DoublePredicate predicate)
```
    Specified by:
    
    eval in interface NumberFilters
  - eval
```
Selection eval(DoubleBiPredicate predicate,
               NumberColumn otherColumn)
```
    Specified by:
    
    eval in interface NumberFilters
  - eval
```
Selection eval(DoubleBiPredicate predicate,
               Number value)
```
    Specified by:
    
    eval in interface NumberFilters
  - eval
```
Selection eval(DoubleRangePredicate predicate,
               Number rangeStart,
               Number rangeEnd)
```
    Specified by:
    
    eval in interface NumberFilters
  - isIn
```
Selection isIn(Number... numbers)
```
    Specified by:
    
    isIn in interface NumberFilters
  - isNotIn
```
Selection isNotIn(Number... numbers)
```
    Specified by:
    
    isNotIn in interface NumberFilters
  - asSet
```
it.unimi.dsi.fastutil.doubles.DoubleSet asSet()
```
  - contains
```
boolean contains(double value)
```
  - byteSize
```
int byteSize()
```
    Description copied from interface: Column
    
    Returns the width of a cell in this column, in bytes.
    
    Specified by:
    
    byteSize in interface Column<Double>
    
    Returns:
    
    width in bytes
  - asBytes
```
byte[] asBytes(int rowNumber)
```
    Description copied from interface: Column
    
    Returns the contents of the cell at rowNumber as a byte[].
    
    Specified by:
    
    asBytes in interface Column<Double>
    
    Parameters:
    
    rowNumber - index of the row
    
    Returns:
    
    content as byte[]
  - asIntArray
```
int[] asIntArray()
```
    Specified by:
    
    asIntArray in interface CategoricalColumn<Double>
  - dataInternal
```
it.unimi.dsi.fastutil.doubles.DoubleList dataInternal()
```
    Description copied from interface: NumberFilters
    
    Returns a clone of the internal data structure
    
    Specified by:
    
    dataInternal in interface NumberFilters
  - appendMissing
```
NumberColumn appendMissing()
```
    Description copied from interface: Column
    
    Appends a missing value appropriate to the column
    
    Specified by:
    
    appendMissing in interface Column<Double>
  - countMissing
```
default int countMissing()
```
    Returns the count of missing values in this column
    
    Specified by:
    
    countMissing in interface Column<Double>
    
    Returns:
    
    missing values as int
  - sum
```
default double sum()
```
    Specified by:
    
    sum in interface NumberMapFunctions
  - product
```
default double product()
```
  - mean
```
default double mean()
```
  - median
```
default double median()
```
  - quartile1
```
default double quartile1()
```
  - quartile3
```
default double quartile3()
```
  - percentile
```
default double percentile(double percentile)
```
  - range
```
default double range()
```
  - max
```
default double max()
```
  - min
```
default double min()
```
  - variance
```
default double variance()
```
  - populationVariance
```
default double populationVariance()
```
  - standardDeviation
```
default double standardDeviation()
```
  - sumOfLogs
```
default double sumOfLogs()
```
  - sumOfSquares
```
default double sumOfSquares()
```
  - geometricMean
```
default double geometricMean()
```
  - quadraticMean
```
default double quadraticMean()
```
    Returns the quadraticMean, aka the root-mean-square, for all values in this column
  - kurtosis
```
default double kurtosis()
```
  - skewness
```
default double skewness()
```
  - asDateTimes
```
DateTimeColumn asDateTimes(ZoneOffset offset)
```
    Returns a DateTimeColumn where each value is the LocalDateTime represented by the values in this column The values in this column must be longs that represent the time in milliseconds from the epoch as in standard Java date/time calculations
    
    Parameters:
    
    offset - The ZoneOffset to use in the calculation
    
    Returns:
    
    A column of LocalDateTime values
  - pearsons
```
default double pearsons(NumberColumn otherColumn)
```
    Returns the pearson's correlation between the receiver and the otherColumn
  - spearmans
```
default double spearmans(NumberColumn otherColumn)
```
    Returns the Spearman's Rank correlation between the receiver and the otherColumn
    
    Parameters:
    
    otherColumn - A NumberColumn with no missing values
    
    Throws:
    
    org.apache.commons.math3.exception.NotANumberException - if either column contains any missing values
  - kendalls
```
default double kendalls(NumberColumn otherColumn)
```
    Returns the Kendall's Tau Rank correlation between the receiver and the otherColumn
  - countUnique
```
default int countUnique()
```
    Returns the number of unique values in this column, excluding missing values
    
    Specified by:
    
    countUnique in interface Column<Double>
    
    Returns:
    
    unique values as int
  - isMissing
```
default Selection isMissing()
```
    Specified by:
    
    isMissing in interface Column<Double>
    
    Specified by:
    
    isMissing in interface NumberFilters
  - isNotMissing
```
default Selection isNotMissing()
```
    Specified by:
    
    isNotMissing in interface Column<Double>
    
    Specified by:
    
    isNotMissing in interface NumberFilters

Interface NumberColumn

Field Summary

Method Summary

Methods inherited from interface tech.tablesaw.api.CategoricalColumn

Methods inherited from interface tech.tablesaw.columns.Column

Methods inherited from interface java.util.Comparator

Methods inherited from interface tech.tablesaw.columns.numbers.DoubleIterable

Methods inherited from interface tech.tablesaw.columns.numbers.NumberFillers

Methods inherited from interface tech.tablesaw.columns.numbers.NumberFilters

Methods inherited from interface tech.tablesaw.columns.numbers.NumberMapFunctions

Field Detail

MISSING_VALUE

Method Detail

valueIsMissing

isMissing

setPrintFormatter

setPrintFormatter

size

summary

stats

top

bottom

unique

firstElement

append

append

append

getString

getDouble

getUnformattedString

emptyCopy

emptyCopy

copy

clear

sortAscending

sortDescending

isEmpty

appendCell

roundInt

getLong

summarizeIf

rowComparator

set

set

asDoubleArray

where

eval

eval

eval

eval

isIn

isNotIn

asSet

contains

byteSize

asBytes

asIntArray

dataInternal

appendMissing

countMissing

sum

product

mean

median

quartile1

quartile3

percentile

range

max

min

variance

populationVariance

standardDeviation

sumOfLogs

sumOfSquares

geometricMean

quadraticMean

kurtosis

skewness

asDateTimes