ShortColumn (tablesaw-core 0.32.4 API)

java.lang.Object
- tech.tablesaw.columns.AbstractColumn<T>
- - tech.tablesaw.api.NumberColumn<Short>
  - - tech.tablesaw.api.ShortColumn

All Implemented Interfaces:

Iterable<Short>, Comparator<Short>, CategoricalColumn<Short>, NumericColumn<Short>, Column<Short>, NumberFilters, NumberMapFunctions
```
public class ShortColumn
extends NumberColumn<Short>
implements CategoricalColumn<Short>
```

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

Constructor Summary

Constructors
Modifier Constructor and Description

protected ShortColumn(String name, it.unimi.dsi.fastutil.shorts.ShortArrayList data)

Constructors
Modifier	Constructor and Description
`protected`	`ShortColumn(String name, it.unimi.dsi.fastutil.shorts.ShortArrayList data)`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`ShortColumn`	`append(Column<Short> column)`
`ShortColumn`	`append(Column<Short> column, int row)`
`ShortColumn`	`append(short i)`
`ShortColumn`	`append(Short val)`
`ShortColumn`	`appendCell(String value)`
`ShortColumn`	`appendCell(String value, AbstractColumnParser<?> parser)`
`ShortColumn`	`appendMissing()` Appends a missing value appropriate to the column
`ShortColumn`	`appendObj(Object obj)`
`byte[]`	`asBytes(int rowNumber)` Returns the contents of the cell at rowNumber as a byte[]
`DoubleColumn`	`asDoubleColumn()` Returns a new DoubleColumn containing a value for each value in this column, truncating if necessary.
`FloatColumn`	`asFloatColumn()` Returns a new FloatColumn 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 A widening primitive conversion from short to long does not lose any information at all; the numeric value is preserved exactly.
`Short[]`	`asObjectArray()`
`ShortColumn`	`bottom(int n)` Returns the smallest ("bottom") n values in the column TODO(lwhite): Consider whether this should exclude missing
`void`	`clear()`
`int`	`compare(Short o1, Short o2)`
`ShortColumn`	`copy()` Returns a deep copy of the receiver
`int`	`countUnique()` Returns the count of unique values in this column.
`static ShortColumn`	`create(String name)`
`static ShortColumn`	`create(String name, int initialSize)`
`static ShortColumn`	`create(String name, short[] arr)`
`ShortColumn`	`createCol(String name)`
`ShortColumn`	`createCol(String name, int initialSize)`
`ShortColumn`	`emptyCopy()` Returns a copy of the receiver with no data.
`ShortColumn`	`emptyCopy(int rowSize)` Returns an empty copy of the receiver, with its internal storage initialized to the given row size.
`ShortColumn`	`filter(Predicate<? super Short> test)` Returns a new Column of the same type with only those rows satisfying the predicate
`ShortColumn`	`first(int numRows)`
`Short`	`get(int index)`
`double`	`getDouble(int row)`
`int`	`getInt(int row)` Returns the value at the given index.
`short`	`getShort(int index)`
`String`	`getString(int row)` Returns a string representation of the value at the given row.
`String`	`getUnformattedString(int row)`
`ShortColumn`	`inRange(int start, int end)` Returns a column containing the rows in this column beginning with start inclusive, and ending with end exclusive
`boolean`	`isMissing(int rowNumber)`
`boolean`	`isMissingValue(short value)`
`Iterator<Short>`	`iterator()`
`ShortColumn`	`lag(int n)` Returns a column of the same type and size as the receiver, containing the receivers values offset by n.
`ShortColumn`	`last(int numRows)`
`ShortColumn`	`lead(int n)` Returns a column of the same type as the receiver, containing the receivers values offset -n For example if you lead a column containing 2, 3, 4 by 1, you get a column containing 3, 4, NA.
`ShortColumn`	`map(Function<? super Short,? extends Short> fun)` Maps the function across all rows, appending the results to a new Column of the same type
`ShortColumn`	`max(Column<Short> other)` Returns a column containing the element-wise min between this column and other column TODO(lwhite) Override in column subtypes for better performance
`ShortColumn`	`min(Column<Short> other)` Returns a column containing the element-wise min between this column and other column TODO(lwhite) Override in column subtypes for better performance
`ShortColumn`	`removeMissing()`
`ShortColumn`	`sampleN(int n)` Returns a column containing a random sample of the values in this column
`ShortColumn`	`sampleX(double proportion)` Returns a table consisting of randomly selected values from this column.
`ShortColumn`	`set(int row, Column<Short> column, int sourceRow)`
`ShortColumn`	`set(int i, short val)`
`ShortColumn`	`set(int i, Short val)`
`ShortColumn`	`set(Selection condition, Column<Short> other)` Updates this column where values matching the selection are replaced with the corresponding value from the given column
`ShortColumn`	`set(Selection rowSelection, Short newValue)` Conditionally update this column, replacing current values with newValue for all rows where the current value matches the selection criteria
`Column<Short>`	`setMissing(int i)`
`ShortColumn`	`setName(String name)` Sets the columns name to the given string
`int`	`size()`
`void`	`sortAscending()`
`void`	`sortDescending()`
`ShortColumn`	`sorted(Comparator<? super Short> comp)` Returns a new Column of the same type sorted according to the provided Comparator
`ShortColumn`	`subset(int[] rows)`
`ShortColumn`	`top(int n)` Returns the largest ("top") n values in the column TODO(lwhite): Consider whether this should exclude missing
`ShortColumn`	`unique()` Returns a column of the same type as the receiver, containing only the unique values of the receiver.
`static boolean`	`valueIsMissing(int value)`
`ShortColumn`	`where(Selection selection)`

Methods inherited from class tech.tablesaw.api.NumberColumn
allMatch, anyMatch, byteSize, countMissing, noneMatch, rowComparator, setPrintFormatter, setPrintFormatter

Methods inherited from class tech.tablesaw.columns.AbstractColumn
asStringColumn, name, 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.CategoricalColumn
countByCategory

Methods inherited from interface tech.tablesaw.columns.Column
allMatch, anyMatch, asList, asStringColumn, byteSize, columnWidth, contains, count, count, countMissing, isEmpty, isMissing, isNotMissing, mapInto, max, min, name, noneMatch, print, reduce, reduce, rolling, rowComparator, summary, 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.api.NumericColumn
asDoubleArray, asIntColumn, asShortColumn, asStringColumn, count, count, eval, eval, eval, eval, eval, geometricMean, isEmpty, isIn, isIn, isMissing, isNotIn, isNotIn, isNotMissing, kendalls, kurtosis, mapInto, max, max, mean, median, min, min, 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.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

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
  - ShortColumn
```
protected ShortColumn(String name,
                      it.unimi.dsi.fastutil.shorts.ShortArrayList data)
```
- Method Detail
  - create
```
public static ShortColumn create(String name)
```
  - create
```
public static ShortColumn create(String name,
                                 short[] arr)
```
  - create
```
public static ShortColumn create(String name,
                                 int initialSize)
```
  - createCol
```
public ShortColumn createCol(String name,
                             int initialSize)
```
    Specified by:
    
    createCol in class NumberColumn<Short>
  - createCol
```
public ShortColumn createCol(String name)
```
    Specified by:
    
    createCol in class NumberColumn<Short>
  - valueIsMissing
```
public static boolean valueIsMissing(int value)
```
  - get
```
public Short get(int index)
```
    Specified by:
    
    get in interface Column<Short>
  - getShort
```
public short getShort(int index)
```
  - subset
```
public ShortColumn subset(int[] rows)
```
    Specified by:
    
    subset in interface Column<Short>
  - size
```
public int size()
```
    Specified by:
    
    size in interface Column<Short>
    
    Specified by:
    
    size in interface NumberFilters
    
    Specified by:
    
    size in interface NumberMapFunctions
  - clear
```
public void clear()
```
    Specified by:
    
    clear in interface Column<Short>
  - unique
```
public ShortColumn 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<Short>
    
    Returns:
    
    a Column
  - top
```
public ShortColumn 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<Short>
    
    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 ShortColumn 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<Short>
    
    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 ShortColumn 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<Short>
    
    Specified by:
    
    lag in interface Column<Short>
  - removeMissing
```
public ShortColumn removeMissing()
```
    Specified by:
    
    removeMissing in interface Column<Short>
  - append
```
public ShortColumn append(short i)
```
  - append
```
public ShortColumn append(Short val)
```
    Specified by:
    
    append in interface Column<Short>
  - emptyCopy
```
public ShortColumn 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<Short>
    
    Overrides:
    
    emptyCopy in class NumberColumn<Short>
    
    Returns:
    
    a empty copy of Column
  - emptyCopy
```
public ShortColumn 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<Short>
    
    Overrides:
    
    emptyCopy in class NumberColumn<Short>
    
    Parameters:
    
    rowSize - the initial row size
    
    Returns:
    
    a Column
  - copy
```
public ShortColumn copy()
```
    Description copied from interface: Column
    
    Returns a deep copy of the receiver
    
    Specified by:
    
    copy in interface Column<Short>
    
    Specified by:
    
    copy in class NumberColumn<Short>
    
    Returns:
    
    a Column
  - iterator
```
public Iterator<Short> iterator()
```
    Specified by:
    
    iterator in interface Iterable<Short>
  - asObjectArray
```
public Short[] asObjectArray()
```
    Specified by:
    
    asObjectArray in interface Column<Short>
  - compare
```
public int compare(Short o1,
                   Short o2)
```
    Specified by:
    
    compare in interface Comparator<Short>
  - set
```
public ShortColumn set(int i,
                       Short val)
```
    Specified by:
    
    set in interface Column<Short>
  - set
```
public ShortColumn set(int i,
                       short val)
```
  - append
```
public ShortColumn append(Column<Short> column)
```
    Specified by:
    
    append in interface Column<Short>
  - 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<Short>
    
    Overrides:
    
    getString in class NumberColumn<Short>
    
    Parameters:
    
    row - The index of the row.
    
    Returns:
    
    value as String
  - append
```
public ShortColumn append(Column<Short> column,
                          int row)
```
    Specified by:
    
    append in interface Column<Short>
  - set
```
public ShortColumn set(int row,
                       Column<Short> column,
                       int sourceRow)
```
    Specified by:
    
    set in interface Column<Short>
  - appendMissing
```
public ShortColumn appendMissing()
```
    Description copied from interface: Column
    
    Appends a missing value appropriate to the column
    
    Specified by:
    
    appendMissing in interface Column<Short>
    
    Specified by:
    
    appendMissing in class NumberColumn<Short>
  - 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<Short>
    
    Specified by:
    
    asBytes in class NumberColumn<Short>
    
    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<Short>
    
    Returns:
    
    unique values as int
  - getInt
```
public int getInt(int row)
```
    Returns the value at the given index. The actual value is returned if the ColumnType is INTEGER Returns the closest int to the argument, with ties rounding to positive infinity.
    Special cases:
    Special cases:
    - If the argument is NaN, the result is 0.
    - If the argument is positive infinity or any value greater than or equal to the value of Integer.MAX_VALUE, an error will be thrown
    Parameters:
    
    row - the index of the value to be rounded to an integer.
    
    Returns:
    
    the value of the argument rounded to the nearest int value.
    
    Throws:
    
    ClassCastException - if the absolute value of the value to be rounded is too large to be cast to an int
  - getDouble
```
public double getDouble(int row)
```
    Specified by:
    
    getDouble in interface NumericColumn<Short>
    
    Specified by:
    
    getDouble in interface NumberFilters
    
    Specified by:
    
    getDouble in interface NumberMapFunctions
  - isMissingValue
```
public boolean isMissingValue(short value)
```
  - isMissing
```
public boolean isMissing(int rowNumber)
```
    Specified by:
    
    isMissing in interface Column<Short>
  - setMissing
```
public Column<Short> setMissing(int i)
```
    Specified by:
    
    setMissing in interface Column<Short>
  - sortAscending
```
public void sortAscending()
```
    Specified by:
    
    sortAscending in interface Column<Short>
  - sortDescending
```
public void sortDescending()
```
    Specified by:
    
    sortDescending in interface Column<Short>
  - appendObj
```
public ShortColumn appendObj(Object obj)
```
    Specified by:
    
    appendObj in interface Column<Short>
  - appendCell
```
public ShortColumn appendCell(String value)
```
    Specified by:
    
    appendCell in interface Column<Short>
  - appendCell
```
public ShortColumn appendCell(String value,
                              AbstractColumnParser<?> parser)
```
    Specified by:
    
    appendCell in interface Column<Short>
  - getUnformattedString
```
public String getUnformattedString(int row)
```
    Specified by:
    
    getUnformattedString in interface Column<Short>
  - inRange
```
public ShortColumn inRange(int start,
                           int end)
```
    Description copied from interface: Column
    
    Returns a column containing the rows in this column beginning with start inclusive, and ending with end exclusive
    
    Specified by:
    
    inRange in interface Column<Short>
    
    Overrides:
    
    inRange in class NumberColumn<Short>
  - where
```
public ShortColumn where(Selection selection)
```
    Specified by:
    
    where in interface NumericColumn<Short>
    
    Specified by:
    
    where in interface Column<Short>
  - lead
```
public ShortColumn lead(int n)
```
    Description copied from interface: Column
    
    Returns a column of the same type as the receiver, containing the receivers values offset -n For example if you lead a column containing 2, 3, 4 by 1, you get a column containing 3, 4, NA.
    
    Specified by:
    
    lead in interface NumericColumn<Short>
    
    Specified by:
    
    lead in interface Column<Short>
  - setName
```
public ShortColumn setName(String name)
```
    Description copied from interface: Column
    
    Sets the columns name to the given string
    
    Specified by:
    
    setName in interface Column<Short>
    
    Overrides:
    
    setName in class AbstractColumn<Short>
    
    Parameters:
    
    name - The new name MUST be unique for any table containing this column
    
    Returns:
    
    this Column to allow method chaining
  - filter
```
public ShortColumn filter(Predicate<? super Short> test)
```
    Description copied from interface: Column
    
    Returns a new Column of the same type with only those rows satisfying the predicate
    
    Specified by:
    
    filter in interface Column<Short>
    
    Parameters:
    
    test - the predicate
    
    Returns:
    
    a new Column of the same type with only those rows satisfying the predicate
  - sorted
```
public ShortColumn sorted(Comparator<? super Short> comp)
```
    Description copied from interface: Column
    
    Returns a new Column of the same type sorted according to the provided Comparator
    
    Specified by:
    
    sorted in interface Column<Short>
    
    Parameters:
    
    comp - the Comparator
    
    Returns:
    
    a sorted Column
  - map
```
public ShortColumn map(Function<? super Short,? extends Short> fun)
```
    Description copied from interface: Column
    
    Maps the function across all rows, appending the results to a new Column of the same type
    
    Specified by:
    
    map in interface Column<Short>
    
    Parameters:
    
    fun - function to map
    
    Returns:
    
    the Column with the results
  - min
```
public ShortColumn min(Column<Short> other)
```
    Description copied from interface: Column
    
    Returns a column containing the element-wise min between this column and other column TODO(lwhite) Override in column subtypes for better performance
    
    Specified by:
    
    min in interface Column<Short>
  - max
```
public ShortColumn max(Column<Short> other)
```
    Description copied from interface: Column
    
    Returns a column containing the element-wise min between this column and other column TODO(lwhite) Override in column subtypes for better performance
    
    Specified by:
    
    max in interface Column<Short>
  - set
```
public ShortColumn set(Selection condition,
                       Column<Short> other)
```
    Description copied from interface: Column
    
    Updates this column where values matching the selection are replaced with the corresponding value from the given column
    
    Specified by:
    
    set in interface Column<Short>
  - set
```
public ShortColumn set(Selection rowSelection,
                       Short newValue)
```
    Description copied from interface: Column
    
    Conditionally update this column, replacing current values with newValue for all rows where the current value matches the selection criteria
    
    Specified by:
    
    set in interface Column<Short>
  - first
```
public ShortColumn first(int numRows)
```
    Specified by:
    
    first in interface Column<Short>
  - last
```
public ShortColumn last(int numRows)
```
    Specified by:
    
    last in interface Column<Short>
  - sampleN
```
public ShortColumn sampleN(int n)
```
    Description copied from interface: Column
    
    Returns a column containing a random sample of the values in this column
    
    Specified by:
    
    sampleN in interface Column<Short>
    
    Parameters:
    
    n - the number of values to select
    
    Returns:
    
    A column of the same type as the receiver
  - sampleX
```
public ShortColumn sampleX(double proportion)
```
    Description copied from interface: Column
    
    Returns a table consisting of randomly selected values from this column. The sample size is based on the given proportion of the total number of cells in this column
    
    Specified by:
    
    sampleX in interface Column<Short>
    
    Parameters:
    
    proportion - The proportion to go in the sample
  - asLongColumn
```
public LongColumn asLongColumn()
```
    Returns a new LongColumn containing a value for each value in this column A widening primitive conversion from short to long does not lose any information at all; the numeric value is preserved exactly. A missing value in the receiver is converted to a missing value in the result
    
    Specified by:
    
    asLongColumn in interface NumericColumn<Short>
  - asFloatColumn
```
public FloatColumn asFloatColumn()
```
    Returns a new FloatColumn containing a value for each value in this column, truncating if necessary. A widening primitive conversion from an int to a float does not lose information about the overall magnitude of a numeric value. It may, however, result in loss of precision - that is, the result may lose some of the least significant bits of the value. In this case, the resulting floating-point value will be a correctly rounded version of the integer value, using IEEE 754 round-to-nearest mode. Despite the fact that a loss of precision may occur, a widening 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<Short>
  - asDoubleColumn
```
public DoubleColumn asDoubleColumn()
```
    Returns a new DoubleColumn containing a value for each value in this column, truncating if necessary. A widening primitive conversion from an int to a double does not lose information about the overall magnitude of a numeric value. It may, however, result in loss of precision - that is, the result may lose some of the least significant bits of the value. In this case, the resulting floating-point value will be a correctly rounded version of the integer value, using IEEE 754 round-to-nearest mode. Despite the fact that a loss of precision may occur, a widening 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:
    
    asDoubleColumn in interface NumericColumn<Short>

Class ShortColumn

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.CategoricalColumn

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.api.NumericColumn

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

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

Constructor Detail

ShortColumn

Method Detail

create

create

create

createCol

createCol

valueIsMissing

get

getShort

subset

size

clear

unique

top

bottom

lag

removeMissing

append

append

emptyCopy

emptyCopy

copy

iterator

asObjectArray

compare

set

set

append

getString

append

set

appendMissing

asBytes

countUnique

getInt

getDouble

isMissingValue

isMissing

setMissing

sortAscending

sortDescending

appendObj

appendCell

appendCell

getUnformattedString

inRange

where

lead

setName

filter

sorted

map

min

max

set

set

first

last

sampleN

sampleX

asLongColumn

asFloatColumn