TimeColumn (tablesaw-core 0.32.4 API)

java.lang.Object
- tech.tablesaw.columns.AbstractColumn<LocalTime>
- - tech.tablesaw.api.TimeColumn

All Implemented Interfaces:

Iterable<LocalTime>, Comparator<LocalTime>, CategoricalColumn<LocalTime>, Column<LocalTime>, TimeFillers<TimeColumn>, TimeFilters, TimeMapFunctions
```
public class TimeColumn
extends AbstractColumn<LocalTime>
implements CategoricalColumn<LocalTime>, TimeFilters, TimeFillers<TimeColumn>, TimeMapFunctions
```
A column in a base table that contains float values

Field Summary
- Fields inherited from class tech.tablesaw.columns.AbstractColumn
  DEFAULT_ARRAY_SIZE

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`TimeColumn`	`append(Column<LocalTime> column)`
`TimeColumn`	`append(Column<LocalTime> column, int row)`
`TimeColumn`	`append(LocalTime time)`
`TimeColumn`	`appendCell(String object)`
`TimeColumn`	`appendCell(String object, AbstractColumnParser<?> parser)`
`TimeColumn`	`appendInternal(int f)`
`TimeColumn`	`appendMissing()` Appends a missing value appropriate to the column
`TimeColumn`	`appendObj(Object obj)`
`byte[]`	`asBytes(int rowNumber)` Returns the contents of the cell at rowNumber as a byte[]
`double[]`	`asDoubleArray()`
`DoubleColumn`	`asDoubleColumn()`
`List<LocalTime>`	`asList()` Returns the entire contents of this column as a list
`LocalTime[]`	`asObjectArray()`
`List<LocalTime>`	`bottom(int n)` Returns the smallest ("bottom") n values in the column, Does not change the order in this column
`int`	`byteSize()` Returns the width of a cell in this column, in bytes.
`void`	`clear()`
`int`	`compare(LocalTime o1, LocalTime o2)`
`boolean`	`contains(LocalTime time)` Returns `true` if the given object appears in this column, and false otherwise TODO override in column subtypes for performance
`TimeColumn`	`copy()` Returns a deep copy of the receiver
`int`	`countMissing()` Returns the count of missing values in this column
`int`	`countUnique()` Returns the count of unique values in this column.
`static TimeColumn`	`create(String name)`
`static TimeColumn`	`create(String name, int initialSize)`
`static TimeColumn`	`create(String name, List<LocalTime> data)`
`static TimeColumn`	`create(String name, LocalTime[] data)`
`it.unimi.dsi.fastutil.ints.IntArrayList`	`data()`
`TimeColumn`	`emptyCopy()` Returns a copy of the receiver with no data.
`TimeColumn`	`emptyCopy(int rowSize)` Returns an empty copy of the receiver, with its internal storage initialized to the given row size.
`TimeColumn`	`fillWith(Iterable<LocalTime> iterable)`
`TimeColumn`	`fillWith(Iterator<LocalTime> iterator)`
`TimeColumn`	`fillWith(Supplier<LocalTime> supplier)`
`TimeColumn`	`filter(Predicate<? super LocalTime> test)` Returns a new Column of the same type with only those rows satisfying the predicate
`TimeColumn`	`first(int numRows)`
`LocalTime`	`get(int index)`
`double`	`getDouble(int i)`
`int`	`getIntInternal(int index)` Returns the packed time representation of the value at index
`protected int`	`getPackedTime(int index)`
`String`	`getString(int row)` Returns a string representation of the value at the given row.
`String`	`getUnformattedString(int row)`
`TimeColumn`	`inRange(int start, int end)` Returns a column containing the rows in this column beginning with start inclusive, and ending with end exclusive
`it.unimi.dsi.fastutil.ints.IntIterator`	`intIterator()`
`boolean`	`isEmpty()` Returns true if the column has no data
`Selection`	`isMissing()`
`boolean`	`isMissing(int rowNumber)`
`Selection`	`isNotMissing()`
`Iterator<LocalTime>`	`iterator()` Returns an iterator over elements of type `T`.
`TimeColumn`	`lag(int n)` Returns a column of the same type and size as the receiver, containing the receivers values offset by n.
`TimeColumn`	`last(int numRows)`
`TimeColumn`	`map(Function<? super LocalTime,? extends LocalTime> fun)` Maps the function across all rows, appending the results to a new Column of the same type
`LocalTime`	`max()`
`TimeColumn`	`max(Column<LocalTime> other)` Returns a column containing the element-wise min between this column and other column TODO(lwhite) Override in column subtypes for better performance
`LocalTime`	`min()`
`TimeColumn`	`min(Column<LocalTime> other)` Returns a column containing the element-wise min between this column and other column TODO(lwhite) Override in column subtypes for better performance
`TimeColumn`	`removeMissing()`
`it.unimi.dsi.fastutil.ints.IntComparator`	`rowComparator()`
`TimeColumn`	`sampleN(int n)` Returns a column containing a random sample of the values in this column
`TimeColumn`	`sampleX(double proportion)` Returns a table consisting of randomly selected values from this column.
`TimeColumn`	`set(int row, Column<LocalTime> column, int sourceRow)`
`TimeColumn`	`set(int index, int value)`
`TimeColumn`	`set(int index, LocalTime value)`
`TimeColumn`	`set(Selection condition, Column<LocalTime> other)` Updates this column where values matching the selection are replaced with the corresponding value from the given column
`TimeColumn`	`set(Selection rowSelection, LocalTime newValue)` Conditionally update this column, replacing current values with newValue for all rows where the current value matches the selection criteria
`TimeColumn`	`setMissing(int i)`
`void`	`setPrintFormatter(DateTimeFormatter dateTimeFormatter)`
`void`	`setPrintFormatter(DateTimeFormatter dateTimeFormatter, String missingValueString)`
`int`	`size()`
`void`	`sortAscending()`
`void`	`sortDescending()`
`TimeColumn`	`sorted(Comparator<? super LocalTime> comp)` Returns a new Column of the same type sorted according to the provided Comparator
`TimeColumn`	`subset(int[] rows)`
`Table`	`summary()`
`List<LocalTime>`	`top(int n)` Returns the largest ("top") n values in the column.
`String`	`toString()`
`TimeColumn`	`unique()` Returns a column of the same type as the receiver, containing only the unique values of the receiver.
`static boolean`	`valueIsMissing(int i)`
`TimeColumn`	`where(Selection selection)`

Methods inherited from class tech.tablesaw.columns.AbstractColumn
asStringColumn, name, setName, 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.times.TimeFilters
eval, eval, eval, eval, eval, isAfter, isAfter, isAfter, isAfterNoon, isBefore, isBefore, isBefore, isBeforeNoon, isEqualTo, isEqualTo, isMidnight, isNoon, isNotEqualTo, isNotEqualTo, isOnOrAfter, isOnOrAfter, isOnOrBefore, isOnOrBefore

Methods inherited from interface tech.tablesaw.columns.times.TimeMapFunctions
difference, differenceInHours, differenceInMilliseconds, differenceInMinutes, differenceInSeconds, hour, hourMinute, lead, milliseconds, minus, minusHours, minusMilliseconds, minusMinutes, minusSeconds, minute, minuteOfDay, plus, plusHours, plusMilliseconds, plusMinutes, plusSeconds, second, secondOfDay, timeWindow, timeWindow, truncatedTo, with, withHour, withMillisecond, withMinute, withSecond

Methods inherited from interface tech.tablesaw.columns.Column
allMatch, anyMatch, asStringColumn, columnWidth, count, count, mapInto, max, min, name, noneMatch, print, reduce, reduce, rolling, setName, 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

- Method Detail
  - valueIsMissing
```
public static boolean valueIsMissing(int i)
```
  - create
```
public static TimeColumn create(String name)
```
  - create
```
public static TimeColumn create(String name,
                                List<LocalTime> data)
```
  - create
```
public static TimeColumn create(String name,
                                LocalTime[] data)
```
  - create
```
public static TimeColumn create(String name,
                                int initialSize)
```
  - appendMissing
```
public TimeColumn appendMissing()
```
    Description copied from interface: Column
    
    Appends a missing value appropriate to the column
    
    Specified by:
    
    appendMissing in interface Column<LocalTime>
  - subset
```
public TimeColumn subset(int[] rows)
```
    Specified by:
    
    subset in interface Column<LocalTime>
  - lag
```
public TimeColumn 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 Column<LocalTime>
    
    Specified by:
    
    lag in interface TimeMapFunctions
  - isMissing
```
public boolean isMissing(int rowNumber)
```
    Specified by:
    
    isMissing in interface Column<LocalTime>
  - size
```
public int size()
```
    Specified by:
    
    size in interface Column<LocalTime>
  - appendInternal
```
public TimeColumn appendInternal(int f)
```
  - append
```
public TimeColumn append(LocalTime time)
```
    Specified by:
    
    append in interface Column<LocalTime>
  - appendObj
```
public TimeColumn appendObj(Object obj)
```
    Specified by:
    
    appendObj in interface Column<LocalTime>
  - removeMissing
```
public TimeColumn removeMissing()
```
    Specified by:
    
    removeMissing in interface Column<LocalTime>
  - 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<LocalTime>
    
    Parameters:
    
    row - The index of the row.
    
    Returns:
    
    value as String
  - getUnformattedString
```
public String getUnformattedString(int row)
```
    Specified by:
    
    getUnformattedString in interface Column<LocalTime>
  - setPrintFormatter
```
public void setPrintFormatter(DateTimeFormatter dateTimeFormatter,
                              String missingValueString)
```
  - setPrintFormatter
```
public void setPrintFormatter(DateTimeFormatter dateTimeFormatter)
```
  - emptyCopy
```
public TimeColumn 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<LocalTime>
    
    Specified by:
    
    emptyCopy in class AbstractColumn<LocalTime>
    
    Returns:
    
    a empty copy of Column
  - emptyCopy
```
public TimeColumn 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<LocalTime>
    
    Parameters:
    
    rowSize - the initial row size
    
    Returns:
    
    a Column
  - copy
```
public TimeColumn copy()
```
    Description copied from interface: Column
    
    Returns a deep copy of the receiver
    
    Specified by:
    
    copy in interface Column<LocalTime>
    
    Returns:
    
    a Column
  - clear
```
public void clear()
```
    Specified by:
    
    clear in interface Column<LocalTime>
  - asList
```
public List<LocalTime> asList()
```
    Returns the entire contents of this column as a list
    
    Specified by:
    
    asList in interface Column<LocalTime>
  - sortAscending
```
public void sortAscending()
```
    Specified by:
    
    sortAscending in interface Column<LocalTime>
  - sortDescending
```
public void sortDescending()
```
    Specified by:
    
    sortDescending in interface Column<LocalTime>
  - max
```
public LocalTime max()
```
  - min
```
public LocalTime min()
```
    Specified by:
    
    min in interface TimeMapFunctions
  - summary
```
public Table summary()
```
    Specified by:
    
    summary in interface Column<LocalTime>
  - countMissing
```
public int countMissing()
```
    Returns the count of missing values in this column
    
    Specified by:
    
    countMissing in interface Column<LocalTime>
    
    Returns:
    
    missing values as int
  - countUnique
```
public int countUnique()
```
    Description copied from interface: Column
    
    Returns the count of unique values in this column.
    
    Specified by:
    
    countUnique in interface Column<LocalTime>
    
    Returns:
    
    unique values as int
  - unique
```
public TimeColumn 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<LocalTime>
    
    Returns:
    
    a Column
  - isEmpty
```
public boolean isEmpty()
```
    Description copied from interface: Column
    
    Returns true if the column has no data
    
    Specified by:
    
    isEmpty in interface Column<LocalTime>
    
    Returns:
    
    true if empty, false if not
  - appendCell
```
public TimeColumn appendCell(String object)
```
    Specified by:
    
    appendCell in interface Column<LocalTime>
  - appendCell
```
public TimeColumn appendCell(String object,
                             AbstractColumnParser<?> parser)
```
    Specified by:
    
    appendCell in interface Column<LocalTime>
  - getIntInternal
```
public int getIntInternal(int index)
```
    Description copied from interface: TimeFilters
    
    Returns the packed time representation of the value at index
    
    Specified by:
    
    getIntInternal in interface TimeFilters
    
    Specified by:
    
    getIntInternal in interface TimeMapFunctions
  - getPackedTime
```
protected int getPackedTime(int index)
```
  - get
```
public LocalTime get(int index)
```
    Specified by:
    
    get in interface Column<LocalTime>
    
    Specified by:
    
    get in interface TimeFilters
    
    Specified by:
    
    get in interface TimeMapFunctions
  - rowComparator
```
public it.unimi.dsi.fastutil.ints.IntComparator rowComparator()
```
    Specified by:
    
    rowComparator in interface Column<LocalTime>
  - data
```
public it.unimi.dsi.fastutil.ints.IntArrayList data()
```
    Specified by:
    
    data in interface TimeFilters
  - getDouble
```
public double getDouble(int i)
```
  - asDoubleArray
```
public double[] asDoubleArray()
```
  - asDoubleColumn
```
public DoubleColumn asDoubleColumn()
```
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class AbstractColumn<LocalTime>
  - append
```
public TimeColumn append(Column<LocalTime> column)
```
    Specified by:
    
    append in interface Column<LocalTime>
  - append
```
public TimeColumn append(Column<LocalTime> column,
                         int row)
```
    Specified by:
    
    append in interface Column<LocalTime>
  - set
```
public TimeColumn set(int row,
                      Column<LocalTime> column,
                      int sourceRow)
```
    Specified by:
    
    set in interface Column<LocalTime>
  - top
```
public List<LocalTime> top(int n)
```
    Returns the largest ("top") n values in the column. Does not change the order in this 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 List<LocalTime> bottom(int n)
```
    Returns the smallest ("bottom") n values in the column, Does not change the order in this 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
  - set
```
public TimeColumn set(int index,
                      int value)
```
  - set
```
public TimeColumn set(int index,
                      LocalTime value)
```
    Specified by:
    
    set in interface Column<LocalTime>
  - set
```
public TimeColumn set(Selection rowSelection,
                      LocalTime newValue)
```
    Conditionally update this column, replacing current values with newValue for all rows where the current value matches the selection criteria
    Example: myColumn.set(myColumn.valueIsMissing(), LocalTime.now()); // no more missing values
    
    Specified by:
    
    set in interface Column<LocalTime>
  - intIterator
```
public it.unimi.dsi.fastutil.ints.IntIterator intIterator()
```
  - contains
```
public boolean contains(LocalTime time)
```
    Description copied from interface: Column
    
    Returns true if the given object appears in this column, and false otherwise TODO override in column subtypes for performance
    
    Specified by:
    
    contains in interface Column<LocalTime>
  - setMissing
```
public TimeColumn setMissing(int i)
```
    Specified by:
    
    setMissing in interface Column<LocalTime>
  - isMissing
```
public Selection isMissing()
```
    Specified by:
    
    isMissing in interface Column<LocalTime>
  - isNotMissing
```
public Selection isNotMissing()
```
    Specified by:
    
    isNotMissing in interface Column<LocalTime>
  - 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<LocalTime>
    
    Returns:
    
    width in bytes
  - asBytes
```
public byte[] asBytes(int rowNumber)
```
    Returns the contents of the cell at rowNumber as a byte[]
    
    Specified by:
    
    asBytes in interface Column<LocalTime>
    
    Parameters:
    
    rowNumber - index of the row
    
    Returns:
    
    content as byte[]
  - iterator
```
public Iterator<LocalTime> iterator()
```
    Returns an iterator over elements of type T.
    
    Specified by:
    
    iterator in interface Iterable<LocalTime>
    
    Returns:
    
    an Iterator.
  - where
```
public TimeColumn where(Selection selection)
```
    Specified by:
    
    where in interface Column<LocalTime>
    
    Specified by:
    
    where in interface TimeFilters
  - asObjectArray
```
public LocalTime[] asObjectArray()
```
    Specified by:
    
    asObjectArray in interface Column<LocalTime>
  - fillWith
```
public TimeColumn fillWith(Iterator<LocalTime> iterator)
```
    Specified by:
    
    fillWith in interface TimeFillers<TimeColumn>
  - fillWith
```
public TimeColumn fillWith(Iterable<LocalTime> iterable)
```
    Specified by:
    
    fillWith in interface TimeFillers<TimeColumn>
  - fillWith
```
public TimeColumn fillWith(Supplier<LocalTime> supplier)
```
    Specified by:
    
    fillWith in interface TimeFillers<TimeColumn>
  - compare
```
public int compare(LocalTime o1,
                   LocalTime o2)
```
    Specified by:
    
    compare in interface Comparator<LocalTime>
  - filter
```
public TimeColumn filter(Predicate<? super LocalTime> 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<LocalTime>
    
    Parameters:
    
    test - the predicate
    
    Returns:
    
    a new Column of the same type with only those rows satisfying the predicate
  - sorted
```
public TimeColumn sorted(Comparator<? super LocalTime> 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<LocalTime>
    
    Parameters:
    
    comp - the Comparator
    
    Returns:
    
    a sorted Column
  - map
```
public TimeColumn map(Function<? super LocalTime,? extends LocalTime> 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<LocalTime>
    
    Parameters:
    
    fun - function to map
    
    Returns:
    
    the Column with the results
  - min
```
public TimeColumn min(Column<LocalTime> 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<LocalTime>
  - max
```
public TimeColumn max(Column<LocalTime> 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<LocalTime>
  - set
```
public TimeColumn set(Selection condition,
                      Column<LocalTime> 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<LocalTime>
  - first
```
public TimeColumn first(int numRows)
```
    Specified by:
    
    first in interface Column<LocalTime>
  - last
```
public TimeColumn last(int numRows)
```
    Specified by:
    
    last in interface Column<LocalTime>
  - inRange
```
public TimeColumn 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<LocalTime>
  - sampleN
```
public TimeColumn 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<LocalTime>
    
    Parameters:
    
    n - the number of values to select
    
    Returns:
    
    A column of the same type as the receiver
  - sampleX
```
public TimeColumn 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<LocalTime>
    
    Parameters:
    
    proportion - The proportion to go in the sample

Class TimeColumn

Field Summary

Fields inherited from class tech.tablesaw.columns.AbstractColumn

Method Summary

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.times.TimeFilters

Methods inherited from interface tech.tablesaw.columns.times.TimeMapFunctions

Methods inherited from interface tech.tablesaw.columns.Column

Methods inherited from interface java.lang.Iterable

Methods inherited from interface java.util.Comparator

Method Detail

valueIsMissing

create

create

create

create

appendMissing

subset

lag

isMissing

size

appendInternal

append

appendObj

removeMissing

getString

getUnformattedString

setPrintFormatter

setPrintFormatter

emptyCopy

emptyCopy

copy

clear

asList

sortAscending

sortDescending

max

min

summary

countMissing

countUnique

unique

isEmpty

appendCell

appendCell

getIntInternal

getPackedTime

get

rowComparator

data

getDouble

asDoubleArray

asDoubleColumn

toString

append

append

set

top

bottom

set

set

set

intIterator

contains

setMissing

isMissing

isNotMissing

byteSize

asBytes

iterator

where

asObjectArray

fillWith

fillWith

fillWith

compare

filter

sorted