DoubleColumn (tablesaw-core 0.37.0 API)

java.lang.Object
- tech.tablesaw.columns.AbstractColumn<C,T>
- - tech.tablesaw.api.NumberColumn<DoubleColumn,Double>
  - - tech.tablesaw.api.DoubleColumn

All Implemented Interfaces:

Iterable<Double>, Comparator<Double>, NumericColumn<Double>, Column<Double>, NumberFillers<DoubleColumn>, NumberFilters, NumberMapFunctions, FilterSpec<Selection>, NumberFilterSpec<Selection>
```
public class DoubleColumn
extends NumberColumn<DoubleColumn,Double>
implements NumberFillers<DoubleColumn>
```

Field Summary
- Fields inherited from class tech.tablesaw.api.NumberColumn
  comparator, locale
- Fields inherited from class tech.tablesaw.columns.AbstractColumn
  DEFAULT_ARRAY_SIZE

Constructor Summary

Constructors
Modifier	Constructor and Description
`protected`	`DoubleColumn(String name)`
`protected`	`DoubleColumn(String name, it.unimi.dsi.fastutil.doubles.DoubleArrayList data)`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`DoubleColumn`	`append(Column<Double> column)`
`DoubleColumn`	`append(Column<Double> column, int row)`
`DoubleColumn`	`append(double d)` Adds the given double to this column
`DoubleColumn`	`append(Double val)`
`DoubleColumn`	`append(float f)` Adds the given float to this column
`DoubleColumn`	`append(int i)`
`DoubleColumn`	`append(Number val)`
`DoubleColumn`	`appendCell(String value)`
`DoubleColumn`	`appendCell(String value, AbstractColumnParser<?> parser)`
`DoubleColumn`	`appendMissing()` Appends a missing value appropriate to the column
`DoubleColumn`	`appendObj(Object obj)`
`byte[]`	`asBytes(int rowNumber)` Returns the contents of the cell at rowNumber as a byte[]
`FloatColumn`	`asFloatColumn()` Returns a new FloatColumn containing a value for each value in this column, truncating if necessary.
`IntColumn`	`asIntColumn()` Returns a new IntColumn containing a value for each value in this column, truncating if necessary.
`LongColumn`	`asLongColumn()` Returns a new LongColumn containing a value for each value in this column, truncating if necessary
`Double[]`	`asObjectArray()`
`ShortColumn`	`asShortColumn()` Returns a new ShortColumn containing a value for each value in this column, truncating if necessary.
`DoubleColumn`	`bottom(int n)` Returns the smallest ("bottom") n values in the column TODO(lwhite): Consider whether this should exclude missing
`void`	`clear()`
`int`	`compare(Double o1, Double o2)`
`DoubleColumn`	`copy()` Returns a deep copy of the receiver
`int`	`countUnique()` Returns the count of unique values in this column.
`static DoubleColumn`	`create(String name)`
`static DoubleColumn`	`create(String name, double[] arr)`
`static DoubleColumn`	`create(String name, DoubleStream stream)`
`static DoubleColumn`	`create(String name, float[] arr)`
`static DoubleColumn`	`create(String name, int initialSize)`
`static DoubleColumn`	`create(String name, int[] arr)`
`static DoubleColumn`	`create(String name, List<Number> numberList)`
`static DoubleColumn`	`create(String name, long[] arr)`
`static DoubleColumn`	`create(String name, Number[] numbers)`
`DoubleColumn`	`createCol(String name)`
`DoubleColumn`	`createCol(String name, int initialSize)`
`DoubleColumn`	`fillWith(double d)`
`DoubleColumn`	`fillWith(it.unimi.dsi.fastutil.doubles.DoubleIterator iterator)`
`DoubleColumn`	`fillWith(DoubleRangeIterable iterable)`
`DoubleColumn`	`fillWith(DoubleSupplier supplier)`
`DoubleColumn`	`filter(DoublePredicate test)` Returns a new NumberColumn with only those rows satisfying the predicate
`Double`	`get(int index)`
`double`	`getDouble(int row)`
`String`	`getString(int row)` Returns a string representation of the value at the given row.
`String`	`getUnformattedString(int row)`
`boolean`	`isMissing(int rowNumber)`
`boolean`	`isMissingValue(double value)`
`Iterator<Double>`	`iterator()`
`DoubleColumn`	`lag(int n)` Returns a column of the same type and size as the receiver, containing the receivers values offset by n.
`DoubleColumn`	`removeMissing()`
`DoubleColumn`	`set(DoublePredicate condition, NumericColumn<?> other)` Updates this column where values matching the selection are replaced with the corresponding value from the given column
`DoubleColumn`	`set(int row, Column<Double> column, int sourceRow)`
`DoubleColumn`	`set(int i, double val)`
`DoubleColumn`	`set(int i, Double val)`
`DoubleColumn`	`setMissing(int index)`
`int`	`size()`
`void`	`sortAscending()`
`void`	`sortDescending()`
`DoubleColumn`	`subset(int[] rows)`
`DoubleColumn`	`top(int n)` Returns the largest ("top") n values in the column TODO(lwhite): Consider whether this should exclude missing
`DoubleColumn`	`unique()` Returns a column of the same type as the receiver, containing only the unique values of the receiver.
`static boolean`	`valueIsMissing(double value)`
`DoubleColumn`	`where(Selection selection)`

Methods inherited from class tech.tablesaw.api.NumberColumn
byteSize, countMissing, emptyCopy, emptyCopy, getPrintFormatter, rowComparator, set, set, setPrintFormatter, setPrintFormatter

Methods inherited from class tech.tablesaw.columns.AbstractColumn
asStringColumn, filter, first, inRange, last, map, max, min, name, sampleN, sampleX, set, set, setName, sorted, toString, type

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

Methods inherited from interface tech.tablesaw.api.NumericColumn
allMatch, anyMatch, asDoubleArray, asDoubleColumn, asStringColumn, autoCorrelation, autoCorrelation, count, count, eval, eval, geometricMean, interpolate, isEmpty, isIn, isIn, isMissing, isNotIn, isNotIn, isNotMissing, kendalls, kurtosis, lead, mapInto, max, max, mean, median, min, min, noneMatch, pctChange, pearsons, percentile, populationVariance, product, quadraticMean, quartile1, quartile3, range, reduce, reduce, rolling, skewness, spearmans, standardDeviation, stats, sum, summarize, summary, sumOfLogs, sumOfSquares, variance

Methods inherited from interface tech.tablesaw.columns.Column
allMatch, anyMatch, asList, columnWidth, contains, count, count, filter, first, inRange, last, map, map, mapInto, max, max, min, min, name, noneMatch, print, reduce, reduce, sampleN, sampleX, set, set, set, setMissingTo, setName, sorted, title, type

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

Methods inherited from interface java.util.Comparator
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.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, power, reciprocal, remainder, remainder, round, roundInt, sqrt, square, subtract, subtract, subtract

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

- Constructor Detail
  - DoubleColumn
```
protected DoubleColumn(String name,
                       it.unimi.dsi.fastutil.doubles.DoubleArrayList data)
```
  - DoubleColumn
```
protected DoubleColumn(String name)
```
- Method Detail
  - valueIsMissing
```
public static boolean valueIsMissing(double value)
```
  - getString
```
public 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>
    
    Overrides:
    
    getString in class NumberColumn<DoubleColumn,Double>
    
    Parameters:
    
    row - The index of the row.
    
    Returns:
    
    value as String
  - size
```
public int size()
```
    Specified by:
    
    size in interface Column<Double>
    
    Specified by:
    
    size in interface NumberFilters
    
    Specified by:
    
    size in interface NumberMapFunctions
  - clear
```
public void clear()
```
    Specified by:
    
    clear in interface Column<Double>
  - setMissing
```
public DoubleColumn setMissing(int index)
```
    Specified by:
    
    setMissing in interface Column<Double>
  - create
```
public static DoubleColumn create(String name,
                                  double[] arr)
```
  - create
```
public static DoubleColumn create(String name)
```
  - create
```
public static DoubleColumn create(String name,
                                  float[] arr)
```
  - create
```
public static DoubleColumn create(String name,
                                  int[] arr)
```
  - create
```
public static DoubleColumn create(String name,
                                  long[] arr)
```
  - create
```
public static DoubleColumn create(String name,
                                  List<Number> numberList)
```
  - create
```
public static DoubleColumn create(String name,
                                  Number[] numbers)
```
  - create
```
public static DoubleColumn create(String name,
                                  int initialSize)
```
  - create
```
public static DoubleColumn create(String name,
                                  DoubleStream stream)
```
  - createCol
```
public DoubleColumn createCol(String name,
                              int initialSize)
```
    Specified by:
    
    createCol in class NumberColumn<DoubleColumn,Double>
  - createCol
```
public DoubleColumn createCol(String name)
```
    Specified by:
    
    createCol in class NumberColumn<DoubleColumn,Double>
  - get
```
public Double get(int index)
```
    Specified by:
    
    get in interface Column<Double>
  - where
```
public DoubleColumn where(Selection selection)
```
    Specified by:
    
    where in interface NumericColumn<Double>
    
    Specified by:
    
    where in interface Column<Double>
  - subset
```
public DoubleColumn subset(int[] rows)
```
    Specified by:
    
    subset in interface Column<Double>
    
    Overrides:
    
    subset in class AbstractColumn<DoubleColumn,Double>
  - unique
```
public DoubleColumn 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
  - top
```
public DoubleColumn top(int n)
```
    Description copied from class: NumberColumn
    
    Returns the largest ("top") n values in the column TODO(lwhite): Consider whether this should exclude missing
    
    Specified by:
    
    top in class NumberColumn<DoubleColumn,Double>
    
    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 DoubleColumn bottom(int n)
```
    Description copied from class: NumberColumn
    
    Returns the smallest ("bottom") n values in the column TODO(lwhite): Consider whether this should exclude missing
    
    Specified by:
    
    bottom in class NumberColumn<DoubleColumn,Double>
    
    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
  - lag
```
public DoubleColumn lag(int n)
```
    Description copied from interface: Column
    
    Returns a column of the same type and size as the receiver, containing the receivers values offset by n.
    For example if you lag a column containing 2, 3, 4 by 1, you get a column containing NA, 2, 3
    
    Specified by:
    
    lag in interface NumericColumn<Double>
    
    Specified by:
    
    lag in interface Column<Double>
  - removeMissing
```
public DoubleColumn removeMissing()
```
    Specified by:
    
    removeMissing in interface Column<Double>
  - append
```
public DoubleColumn append(float f)
```
    Adds the given float to this column
  - append
```
public DoubleColumn append(double d)
```
    Adds the given double to this column
  - append
```
public DoubleColumn append(int i)
```
  - append
```
public DoubleColumn append(Double val)
```
    Specified by:
    
    append in interface Column<Double>
  - append
```
public DoubleColumn append(Number val)
```
  - copy
```
public DoubleColumn copy()
```
    Description copied from interface: Column
    
    Returns a deep copy of the receiver
    
    Specified by:
    
    copy in interface NumericColumn<Double>
    
    Specified by:
    
    copy in interface Column<Double>
    
    Specified by:
    
    copy in class NumberColumn<DoubleColumn,Double>
    
    Returns:
    
    a Column
  - iterator
```
public Iterator<Double> iterator()
```
    Specified by:
    
    iterator in interface Iterable<Double>
  - asObjectArray
```
public Double[] asObjectArray()
```
    Specified by:
    
    asObjectArray in interface Column<Double>
  - compare
```
public int compare(Double o1,
                   Double o2)
```
    Specified by:
    
    compare in interface Comparator<Double>
  - set
```
public DoubleColumn set(int i,
                        Double val)
```
    Specified by:
    
    set in interface Column<Double>
  - set
```
public DoubleColumn set(int i,
                        double val)
```
  - set
```
public DoubleColumn set(DoublePredicate condition,
                        NumericColumn<?> other)
```
    Updates this column where values matching the selection are replaced with the corresponding value from the given column
  - append
```
public DoubleColumn append(Column<Double> column)
```
    Specified by:
    
    append in interface Column<Double>
  - append
```
public DoubleColumn append(Column<Double> column,
                           int row)
```
    Specified by:
    
    append in interface Column<Double>
  - set
```
public DoubleColumn set(int row,
                        Column<Double> column,
                        int sourceRow)
```
    Specified by:
    
    set in interface Column<Double>
  - filter
```
public DoubleColumn filter(DoublePredicate test)
```
    Returns a new NumberColumn with only those rows satisfying the predicate
    
    Parameters:
    
    test - the predicate
    
    Returns:
    
    a new NumberColumn with only those rows satisfying the predicate
  - asBytes
```
public byte[] asBytes(int rowNumber)
```
    Description copied from class: NumberColumn
    
    Returns the contents of the cell at rowNumber as a byte[]
    
    Specified by:
    
    asBytes in interface Column<Double>
    
    Specified by:
    
    asBytes in class NumberColumn<DoubleColumn,Double>
    
    Parameters:
    
    rowNumber - index of the row
    
    Returns:
    
    content as byte[]
  - countUnique
```
public int countUnique()
```
    Description copied from interface: Column
    
    Returns the count of unique values in this column.
    
    Specified by:
    
    countUnique in interface Column<Double>
    
    Returns:
    
    unique values as int
  - getDouble
```
public double getDouble(int row)
```
    Specified by:
    
    getDouble in interface NumericColumn<Double>
    
    Specified by:
    
    getDouble in interface NumberFilters
    
    Specified by:
    
    getDouble in interface NumberMapFunctions
  - isMissingValue
```
public boolean isMissingValue(double value)
```
  - isMissing
```
public boolean isMissing(int rowNumber)
```
    Specified by:
    
    isMissing in interface Column<Double>
    
    Specified by:
    
    isMissing in interface NumberMapFunctions
  - sortAscending
```
public void sortAscending()
```
    Specified by:
    
    sortAscending in interface Column<Double>
  - sortDescending
```
public void sortDescending()
```
    Specified by:
    
    sortDescending in interface Column<Double>
  - appendMissing
```
public DoubleColumn appendMissing()
```
    Description copied from interface: Column
    
    Appends a missing value appropriate to the column
    
    Specified by:
    
    appendMissing in interface Column<Double>
    
    Specified by:
    
    appendMissing in class NumberColumn<DoubleColumn,Double>
  - appendObj
```
public DoubleColumn appendObj(Object obj)
```
    Specified by:
    
    appendObj in interface Column<Double>
  - appendCell
```
public DoubleColumn appendCell(String value)
```
    Specified by:
    
    appendCell in interface Column<Double>
  - appendCell
```
public DoubleColumn appendCell(String value,
                               AbstractColumnParser<?> parser)
```
    Specified by:
    
    appendCell in interface Column<Double>
  - getUnformattedString
```
public String getUnformattedString(int row)
```
    Specified by:
    
    getUnformattedString in interface Column<Double>
  - fillWith
```
public DoubleColumn fillWith(it.unimi.dsi.fastutil.doubles.DoubleIterator iterator)
```
    Specified by:
    
    fillWith in interface NumberFillers<DoubleColumn>
  - fillWith
```
public DoubleColumn fillWith(DoubleRangeIterable iterable)
```
    Specified by:
    
    fillWith in interface NumberFillers<DoubleColumn>
  - fillWith
```
public DoubleColumn fillWith(DoubleSupplier supplier)
```
    Specified by:
    
    fillWith in interface NumberFillers<DoubleColumn>
  - fillWith
```
public DoubleColumn fillWith(double d)
```
    Specified by:
    
    fillWith in interface NumberFillers<DoubleColumn>
  - asLongColumn
```
public LongColumn asLongColumn()
```
    Returns a new LongColumn containing a value for each value in this column, truncating if necessary
    A narrowing primitive conversion such as this one may lose information about the overall magnitude of a numeric value and may also lose precision and range. Specifically, if the value is too small (a negative value of large magnitude or negative infinity), the result is the smallest representable value of type long.
    Similarly, if the value is too large (a positive value of large magnitude or positive infinity), the result is the largest representable value of type long.
    Despite the fact that overflow, underflow, or other loss of information may occur, a narrowing primitive conversion never results in a run-time exception.
    A missing value in the receiver is converted to a missing value in the result
    
    Specified by:
    
    asLongColumn in interface NumericColumn<Double>
  - asIntColumn
```
public IntColumn asIntColumn()
```
    Returns a new IntColumn containing a value for each value in this column, truncating if necessary.
    A narrowing primitive conversion such as this one may lose information about the overall magnitude of a numeric value and may also lose precision and range. Specifically, if the value is too small (a negative value of large magnitude or negative infinity), the result is the smallest representable value of type int.
    Similarly, if the value is too large (a positive value of large magnitude or positive infinity), the result is the largest representable value of type int.
    Despite the fact that overflow, underflow, or other loss of information may occur, a narrowing primitive conversion never results in a run-time exception.
    A missing value in the receiver is converted to a missing value in the result
    
    Specified by:
    
    asIntColumn in interface NumericColumn<Double>
  - asShortColumn
```
public ShortColumn asShortColumn()
```
    Returns a new ShortColumn containing a value for each value in this column, truncating if necessary.
    A narrowing primitive conversion such as this one may lose information about the overall magnitude of a numeric value and may also lose precision and range. Specifically, if the value is too small (a negative value of large magnitude or negative infinity), the result is the smallest representable value of type int.
    Similarly, if the value is too large (a positive value of large magnitude or positive infinity), the result is the largest representable value of type short.
    Despite the fact that overflow, underflow, or other loss of information may occur, a narrowing primitive conversion never results in a run-time exception.
    A missing value in the receiver is converted to a missing value in the result
    
    Specified by:
    
    asShortColumn in interface NumericColumn<Double>
  - asFloatColumn
```
public FloatColumn asFloatColumn()
```
    Returns a new FloatColumn containing a value for each value in this column, truncating if necessary.
    A narrowing primitive conversion such as this one may lose information about the overall magnitude of a numeric value and may also lose precision and range. Specifically, if the value is too small (a negative value of large magnitude or negative infinity), the result is the smallest representable value of type float.
    Similarly, if the value is too large (a positive value of large magnitude or positive infinity), the result is the largest representable value of type float.
    Despite the fact that overflow, underflow, or other loss of information may occur, a narrowing primitive conversion never results in a run-time exception.
    A missing value in the receiver is converted to a missing value in the result
    
    Specified by:
    
    asFloatColumn in interface NumericColumn<Double>

Class DoubleColumn

Field Summary

Fields inherited from class tech.tablesaw.api.NumberColumn

Fields inherited from class tech.tablesaw.columns.AbstractColumn

Constructor Summary

Method Summary

Methods inherited from class tech.tablesaw.api.NumberColumn

Methods inherited from class tech.tablesaw.columns.AbstractColumn

Methods inherited from class java.lang.Object

Methods inherited from interface tech.tablesaw.api.NumericColumn

Methods inherited from interface tech.tablesaw.columns.Column

Methods inherited from interface java.lang.Iterable

Methods inherited from interface java.util.Comparator

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

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

Constructor Detail

DoubleColumn

DoubleColumn

Method Detail

valueIsMissing

getString

size

clear

setMissing

create

create

create

create

create

create

create

create

create

createCol

createCol

get

where

subset

unique

top

bottom

lag

removeMissing

append

append

append

append

append

copy

iterator

asObjectArray

compare

set

set

set

append

append

set

filter

asBytes

countUnique

getDouble

isMissingValue

isMissing

sortAscending

sortDescending

appendMissing

appendObj

appendCell

appendCell

getUnformattedString

fillWith

fillWith

fillWith

fillWith

asLongColumn

asIntColumn

asShortColumn

asFloatColumn