Uses of Interface
tech.tablesaw.columns.Column

Packages that use Column

Package	Description
tech.tablesaw.aggregate
tech.tablesaw.api
tech.tablesaw.columns
tech.tablesaw.columns.booleans
tech.tablesaw.columns.booleans.filters
tech.tablesaw.columns.dates
tech.tablesaw.columns.dates.filters
tech.tablesaw.columns.datetimes
tech.tablesaw.columns.datetimes.filters
tech.tablesaw.columns.numbers
tech.tablesaw.columns.numbers.filters
tech.tablesaw.columns.strings
tech.tablesaw.columns.strings.filters
tech.tablesaw.columns.times
tech.tablesaw.columns.times.filters
tech.tablesaw.filtering
tech.tablesaw.filtering.composite
tech.tablesaw.io
tech.tablesaw.selection
tech.tablesaw.sorting
tech.tablesaw.table

Uses of Column in tech.tablesaw.aggregate

Methods in tech.tablesaw.aggregate with parameters of type Column

Modifier and Type	Method and Description
abstract double	StringAggregateFunction.summarize(Column column)
abstract double	AggregateFunction.summarize(Column column)
abstract double	NumericAggregateFunction.summarize(Column column)
abstract double	TimeAggregateFunction.summarize(Column column)
abstract double	DateAggregateFunction.summarize(Column column)
abstract double	BooleanAggregateFunction.summarize(Column column)
abstract double	DateTimeAggregateFunction.summarize(Column column)

Constructors in tech.tablesaw.aggregate with parameters of type Column

Constructor and Description
Summarizer(Table sourceTable, Column column, AggregateFunction... functions) Returns an object capable of summarizing the given column in the given sourceTable, by applying the given functions
Summarizer(Table sourceTable, Column column1, Column column2, AggregateFunction... functions) Returns an object capable of summarizing the given columns in the given sourceTable, by applying the given functions
Summarizer(Table sourceTable, Column column1, Column column2, Column column3, AggregateFunction... functions) Returns an object capable of summarizing the given column2 in the given sourceTable, by applying the given functions
Summarizer(Table sourceTable, Column column1, Column column2, Column column3, Column column4, AggregateFunction... functions) Returns an object capable of summarizing the given columns in the given sourceTable, by applying the given functions

Uses of Column in tech.tablesaw.api

Subinterfaces of Column in tech.tablesaw.api

Modifier and Type	Interface and Description
interface	CategoricalColumn A column type that can be summarized, or serve as a grouping variable in cross tabs or other aggregation operations.
interface	NumberColumn

Classes in tech.tablesaw.api that implement Column

Modifier and Type	Class and Description
class	BooleanColumn A column in a base table that contains float values
class	DateColumn A column in a base table that contains float values
class	DateTimeColumn A column in a table that contains long-integer encoded (packed) local date-time values
class	DoubleColumn A column in a base table that contains double precision floating point values
class	StringColumn A column that contains String values.
class	TimeColumn A column in a base table that contains float values

Methods in tech.tablesaw.api that return Column

Modifier and Type	Method and Description
Column	Table.column(int columnIndex) Returns the column at the given index in the column list
Column[]	Table.columnArray()
Column	ColumnType.create(String name)
Column	DoubleColumn.unique() TODO(lwhite): Ensure proper handling of missing values.
Column	NumberColumn.unique()

Methods in tech.tablesaw.api that return types with arguments of type Column

Modifier and Type	Method and Description
List<Column>	Table.columns() Returns the list of columns

Methods in tech.tablesaw.api with parameters of type Column

Modifier and Type	Method and Description
Table	Table.addColumns(Column... cols) Adds the given column to this table
void	BooleanColumn.append(Column column)
void	DateColumn.append(Column column)
void	DateTimeColumn.append(Column column)
void	DoubleColumn.append(Column column)
void	NumberColumn.append(Column column)
void	StringColumn.append(Column column)
void	TimeColumn.append(Column column)
int	Table.columnIndex(Column column) Returns the index of the given column (its position in the list of columns)
static Table	Table.create(String tableName, Column... columns) Returns a new table with the given columns and given name
Table	Table.insertColumn(int index, Column column) Adds the given column to this table at the given position in the column list
Table	Table.removeColumns(Column... columns) Removes the given columns
Table	Table.replaceColumn(int colIndex, Column newColumn) Replaces an existing column (by index) in this table with the given new column
Table	Table.replaceColumn(String columnName, Column newColumn) Replaces an existing column (by name) in this table with the given new column
Table	Table.retainColumns(Column... columns) Removes all columns except for those given in the argument from this table
Table	Table.select(Column... columns)
Summarizer	Table.summarize(Column numberColumn, AggregateFunction... function)
Summarizer	Table.summarize(Column numberColumn1, Column numberColumn2, AggregateFunction... function)
Summarizer	Table.summarize(Column column1, Column column2, Column column3, AggregateFunction... function)
Summarizer	Table.summarize(Column column1, Column column2, Column column3, Column column4, AggregateFunction... function)

Constructors in tech.tablesaw.api with parameters of type Column

Constructor and Description
Table(String name, Column... columns) Returns a new Table initialized with the given names and columns

Uses of Column in tech.tablesaw.columns

Classes in tech.tablesaw.columns that implement Column

Modifier and Type	Class and Description
class	AbstractColumn Partial implementation of the Column interface

Methods in tech.tablesaw.columns that return Column

Modifier and Type	Method and Description
abstract Column	AbstractColumn.appendCell(String stringvalue)
Column	Column.appendCell(String stringValue)
Column	Column.appendMissing() Appends a missing value appropriate to the column
Column	Column.copy() Returns a deep copy of the receiver
static Column	Column.create(String columnName, ColumnType type)
Column	Column.emptyCopy() Returns a copy of the receiver with no data.
Column	Column.emptyCopy(int rowSize) Returns an empty copy of the receiver, with its internal storage initialized to the given row size.
default Column	Column.first(int numRows)
default Column	Column.inRange(int start, int end) Returns a column containing the rows in this column beginning with start inclusive, and ending with end exclusive
Column	Column.lag(int n) Returns a column of the same type and size as the receiver, containing the receivers values offset by n.
default Column	Column.last(int numRows)
default Column	Column.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.
Column	Column.removeMissing()
default Column	Column.rows(int... indices) Returns a column containing the values in this column with the given indices
default Column	Column.sampleN(int n) Returns a column containing a random sample of the values in this column
default Column	Column.sampleX(double proportion) Returns a table consisting of randomly selected values from this column.
Column	AbstractColumn.setName(String name)
Column	Column.setName(String name) Sets the columns name to the given string
default Column	Column.subset(Selection rows)
Column	Column.unique() Returns a column of the same type as the receiver, containing only the unique values of the receiver.
Column	Column.where(Selection selection)

Methods in tech.tablesaw.columns with parameters of type Column

Modifier and Type	Method and Description
void	Column.append(Column column)

Uses of Column in tech.tablesaw.columns.booleans

Subinterfaces of Column in tech.tablesaw.columns.booleans

Modifier and Type	Interface and Description
interface	BooleanColumnUtils
interface	BooleanMapUtils An interface for mapping operations unique to Boolean columns

Uses of Column in tech.tablesaw.columns.booleans.filters

Methods in tech.tablesaw.columns.booleans.filters with parameters of type Column

Modifier and Type	Method and Description
Selection	IsTrue.apply(Column columnBeingFiltered)
Selection	IsFalse.apply(Column columnBeingFiltered)

Uses of Column in tech.tablesaw.columns.dates

Subinterfaces of Column in tech.tablesaw.columns.dates

Modifier and Type	Interface and Description
interface	DateFilters
interface	DateMapFunctions An interface for mapping operations unique to Date columns

Methods in tech.tablesaw.columns.dates with parameters of type Column

Modifier and Type	Method and Description
static String	DateMapFunctions.dateColumnName(Column column1, int value, TemporalUnit unit)

Uses of Column in tech.tablesaw.columns.dates.filters

Methods in tech.tablesaw.columns.dates.filters with parameters of type Column

Modifier and Type	Method and Description
Selection	ColumnEqualTo.apply(Column columnBeingFiltered) Returns a selection formed by applying a predicate for case-neutral equality between each value in the given column and the corresponding value of the column passed into the constructor.
Selection	BetweenInclusive.apply(Column columnBeingFiltered)
Selection	IsOnOrAfter.apply(Column columnBeingFiltered)
Selection	IsOnOrBefore.apply(Column columnBeingFiltered)
Selection	IsAfter.apply(Column columnBeingFiltered)
Selection	ColumnNotEqualTo.apply(Column columnBeingFiltered) Returns a selection formed by applying a predicate for case-neutral equality between each value in the given column and the corresponding value of the column passed into the constructor.
Selection	ColumnIsAfter.apply(Column columnBeingFiltered) Returns a selection formed by applying a predicate for case-neutral equality between each value in the given column and the corresponding value of the column passed into the constructor.
Selection	BetweenExclusive.apply(Column columnBeingFiltered)
Selection	ColumnIsBefore.apply(Column columnBeingFiltered) Returns a selection formed by applying a predicate for case-neutral equality between each value in the given column and the corresponding value of the column passed into the constructor.
Selection	EqualTo.apply(Column columnBeingFiltered)
Selection	IsBefore.apply(Column columnBeingFiltered)

Constructors in tech.tablesaw.columns.dates.filters with parameters of type Column

Constructor and Description
ColumnEqualTo(ColumnReference reference, Column otherColumn)
ColumnIsAfter(ColumnReference reference, Column otherColumn)
ColumnIsBefore(ColumnReference reference, Column otherColumn)
ColumnNotEqualTo(ColumnReference reference, Column otherColumn)

Uses of Column in tech.tablesaw.columns.datetimes

Subinterfaces of Column in tech.tablesaw.columns.datetimes

Modifier and Type	Interface and Description
interface	DateTimeFilters
interface	DateTimeMapFunctions

Uses of Column in tech.tablesaw.columns.datetimes.filters

Methods in tech.tablesaw.columns.datetimes.filters with parameters of type Column

Modifier and Type	Method and Description
Selection	IsInApril.apply(Column columnBeingFiltered)
Selection	NotEqualTo.apply(Column columnBeingFiltered)
Selection	ColumnEqualTo.apply(Column columnBeingFiltered) Returns a selection formed by applying a predicate for case-neutral equality between each value in the given column and the corresponding value of the column passed into the constructor.
Selection	IsInOctober.apply(Column columnBeingFiltered)
Selection	IsFirstDayOfTheMonth.apply(Column columnBeingFiltered)
Selection	IsTuesday.apply(Column columnBeingFiltered)
Selection	IsInQ4.apply(Column columnBeingFiltered)
Selection	IsWednesday.apply(Column columnBeingFiltered)
Selection	IsInQ2.apply(Column columnBeingFiltered)
Selection	IsInMay.apply(Column columnBeingFiltered)
Selection	IsInJuly.apply(Column columnBeingFiltered)
Selection	IsInYear.apply(Column columnBeingFiltered)
Selection	IsInNovember.apply(Column columnBeingFiltered)
Selection	IsOnOrAfter.apply(Column columnBeingFiltered)
Selection	IsOnOrBefore.apply(Column columnBeingFiltered)
Selection	IsAfter.apply(Column columnBeingFiltered)
Selection	IsInFebruary.apply(Column columnBeingFiltered)
Selection	IsInJanuary.apply(Column columnBeingFiltered)
Selection	IsLastDayOfTheMonth.apply(Column columnBeingFiltered)
Selection	IsInQ1.apply(Column columnBeingFiltered)
Selection	IsInJune.apply(Column columnBeingFiltered)
Selection	IsMonday.apply(Column columnBeingFiltered)
Selection	IsInDecember.apply(Column columnBeingFiltered)
Selection	ColumnNotEqualTo.apply(Column columnBeingFiltered) Returns a selection formed by applying a predicate for case-neutral equality between each value in the given column and the corresponding value of the column passed into the constructor.
Selection	IsInMarch.apply(Column columnBeingFiltered)
Selection	IsThursday.apply(Column columnBeingFiltered)
Selection	ColumnIsAfter.apply(Column columnBeingFiltered) Returns a selection formed by applying a predicate for case-neutral equality between each value in the given column and the corresponding value of the column passed into the constructor.
Selection	IsSunday.apply(Column columnBeingFiltered)
Selection	IsFriday.apply(Column columnBeingFiltered)
Selection	IsInSeptember.apply(Column columnBeingFiltered)
Selection	IsInQ3.apply(Column columnBeingFiltered)
Selection	ColumnIsBefore.apply(Column columnBeingFiltered) Returns a selection formed by applying a predicate for case-neutral equality between each value in the given column and the corresponding value of the column passed into the constructor.
Selection	EqualTo.apply(Column columnBeingFiltered)
Selection	IsBefore.apply(Column columnBeingFiltered)
Selection	IsInAugust.apply(Column columnBeingFiltered)
Selection	IsSaturday.apply(Column columnBeingFiltered)

Constructors in tech.tablesaw.columns.datetimes.filters with parameters of type Column

Constructor and Description
ColumnEqualTo(ColumnReference reference, Column otherColumn)
ColumnIsAfter(ColumnReference reference, Column otherColumn)
ColumnIsBefore(ColumnReference reference, Column otherColumn)
ColumnNotEqualTo(ColumnReference reference, Column otherColumn)

Uses of Column in tech.tablesaw.columns.numbers

Subinterfaces of Column in tech.tablesaw.columns.numbers

Modifier and Type	Interface and Description
interface	NumberFilters
interface	NumberMapFunctions
interface	NumberPredicates Support for built-in predicates on double column

Uses of Column in tech.tablesaw.columns.numbers.filters

Methods in tech.tablesaw.columns.numbers.filters with parameters of type Column

Modifier and Type	Method and Description
Selection	ColumnLessThan.apply(Column columnBeingFiltered) Returns a selection formed by applying a predicate for case-neutral equality between each value in the given column and the corresponding value of the column passed into the constructor.
Selection	NotEqualTo.apply(Column columnBeingFiltered)
Selection	ColumnEqualTo.apply(Column columnBeingFiltered) Returns a selection formed by applying a predicate for case-neutral equality between each value in the given column and the corresponding value of the column passed into the constructor.
Selection	IsPositive.apply(Column columnBeingFiltered)
Selection	IsNegative.apply(Column columnBeingFiltered)
Selection	IsNonNegative.apply(Column columnBeingFiltered)
Selection	LessThan.apply(Column columnBeingFiltered)
Selection	IsIn.apply(Column columnBeingFiltered)
Selection	GreaterThanOrEqualTo.apply(Column columnBeingFiltered)
Selection	IsCloseTo.apply(Column columnBeingFiltered)
Selection	BetweenInclusive.apply(Column columnBeingFiltered)
Selection	IsNotIn.apply(Column columnBeingFiltered)
Selection	IsZero.apply(Column columnBeingFiltered)
Selection	GreaterThan.apply(Column columnBeingFiltered)
Selection	LessThanOrEqualTo.apply(Column columnBeingFiltered)
Selection	BetweenExclusive.apply(Column columnBeingFiltered)
Selection	ColumnGreaterThan.apply(Column columnBeingFiltered) Returns a selection formed by applying a predicate for case-neutral equality between each value in the given column and the corresponding value of the column passed into the constructor.
Selection	EqualTo.apply(Column columnBeingFiltered)

Constructors in tech.tablesaw.columns.numbers.filters with parameters of type Column

Constructor and Description
ColumnEqualTo(Column columnToCompareAgainst)
ColumnEqualTo(ColumnReference reference, Column otherColumn)
ColumnGreaterThan(Column columnToCompareAgainst)
ColumnGreaterThan(ColumnReference reference, Column otherColumn)
ColumnLessThan(Column columnToCompareAgainst)
ColumnLessThan(ColumnReference reference, Column otherColumn)

Uses of Column in tech.tablesaw.columns.strings

Subinterfaces of Column in tech.tablesaw.columns.strings

Modifier and Type	Interface and Description
interface	StringFilters
interface	StringMapFunctions String utility functions.
interface	StringReduceUtils

Methods in tech.tablesaw.columns.strings with parameters of type Column

Modifier and Type	Method and Description
default StringColumn	StringMapFunctions.commonPrefix(Column column2)
default StringColumn	StringMapFunctions.commonSuffix(Column column2)
default NumberColumn	StringMapFunctions.distance(Column column2) Returns a column containing the levenshtein distance between the two given string columns

Uses of Column in tech.tablesaw.columns.strings.filters

Methods in tech.tablesaw.columns.strings.filters with parameters of type Column

Modifier and Type	Method and Description
Selection	NotEqualTo.apply(Column columnBeingFiltered)
Selection	ColumnEqualTo.apply(Column columnBeingFiltered) Returns a selection formed by applying a predicate for case-neutral equality between each value in the given column and the corresponding value of the column passed into the constructor.
Selection	EqualToIgnoringCase.apply(Column columnBeingFiltered)
Selection	IsUpperCase.apply(Column columnBeingFiltered)
Selection	IsEmptyString.apply(Column columnBeingFiltered)
Selection	IsIn.apply(Column columnBeingFiltered)
Selection	MatchesRegex.apply(Column columnBeingFiltered)
Selection	ContainsString.apply(Column columnBeingFiltered)
Selection	IsAlpha.apply(Column columnBeingFiltered)
Selection	ColumnStartsWith.apply(Column columnBeingFiltered) Returns a selection formed by applying a predicate for case-neutral equality between each value in the given column and the corresponding value of the column passed into the constructor.
Selection	IsLowerCase.apply(Column columnBeingFiltered)
Selection	IsNotIn.apply(Column columnBeingFiltered)
Selection	StartsWith.apply(Column columnBeingFiltered)
Selection	ColumnContainsString.apply(Column columnBeingFiltered) Returns a selection formed by applying a predicate for case-neutral equality between each value in the given column and the corresponding value of the column passed into the constructor.
Selection	IsShorterThan.apply(Column columnBeingFiltered)
Selection	ColumnNotEqualTo.apply(Column columnBeingFiltered) Returns a selection formed by applying a predicate for case-neutral equality between each value in the given column and the corresponding value of the column passed into the constructor.
Selection	ColumnEndsWith.apply(Column columnBeingFiltered) Returns a selection formed by applying a predicate for case-neutral equality between each value in the given column and the corresponding value of the column passed into the constructor.
Selection	IsAlphaNumeric.apply(Column columnBeingFiltered)
Selection	EndsWith.apply(Column columnBeingFiltered)
Selection	ColumnEqualToIgnoringCase.apply(Column columnBeingFiltered) Returns a selection formed by applying a predicate for case-neutral equality between each value in the given column and the corresponding value of the column passed into the constructor.
Selection	IsNumeric.apply(Column columnBeingFiltered)
Selection	EqualTo.apply(Column columnBeingFiltered)
Selection	IsLongerThan.apply(Column columnBeingFiltered)
Selection	HasLengthEqualTo.apply(Column columnBeingFiltered)

Uses of Column in tech.tablesaw.columns.times

Subinterfaces of Column in tech.tablesaw.columns.times

Modifier and Type	Interface and Description
interface	TimeFilters
interface	TimeMapFunctions

Uses of Column in tech.tablesaw.columns.times.filters

Methods in tech.tablesaw.columns.times.filters with parameters of type Column

Modifier and Type	Method and Description
Selection	NotEqualTo.apply(Column columnBeingFiltered)
Selection	ColumnEqualTo.apply(Column columnBeingFiltered) Returns a selection formed by applying a predicate for case-neutral equality between each value in the given column and the corresponding value of the column passed into the constructor.
Selection	IsNoon.apply(Column columnBeingFiltered)
Selection	IsAfterNoon.apply(Column columnBeingFiltered)
Selection	IsMidnight.apply(Column columnBeingFiltered)
Selection	IsOnOrAfter.apply(Column columnBeingFiltered)
Selection	IsOnOrBefore.apply(Column columnBeingFiltered)
Selection	IsAfter.apply(Column columnBeingFiltered)
Selection	ColumnNotEqualTo.apply(Column columnBeingFiltered) Returns a selection formed by applying a predicate for case-neutral equality between each value in the given column and the corresponding value of the column passed into the constructor.
Selection	ColumnIsAfter.apply(Column columnBeingFiltered) Returns a selection formed by applying a predicate for case-neutral equality between each value in the given column and the corresponding value of the column passed into the constructor.
Selection	IsBeforeNoon.apply(Column columnBeingFiltered)
Selection	ColumnIsBefore.apply(Column columnBeingFiltered) Returns a selection formed by applying a predicate for case-neutral equality between each value in the given column and the corresponding value of the column passed into the constructor.
Selection	EqualTo.apply(Column columnBeingFiltered)
Selection	IsBefore.apply(Column columnBeingFiltered)

Constructors in tech.tablesaw.columns.times.filters with parameters of type Column

Constructor and Description
ColumnEqualTo(ColumnReference reference, Column otherColumn)
ColumnIsAfter(ColumnReference reference, Column otherColumn)
ColumnIsBefore(ColumnReference reference, Column otherColumn)
ColumnNotEqualTo(ColumnReference reference, Column otherColumn)

Uses of Column in tech.tablesaw.filtering

Methods in tech.tablesaw.filtering that return Column

Modifier and Type	Method and Description
Column	TwoColumnFilter.otherColumn()

Methods in tech.tablesaw.filtering with parameters of type Column

Modifier and Type	Method and Description
Selection	Filter.apply(Column columnBeingFiltered) Returns a selection created by applying this filter (and any optional params added in extending classes) to the given column
Selection	IsNotMissing.apply(Column columnBeingFiltered)
Selection	IsMissing.apply(Column columnBeingFiltered)

Constructors in tech.tablesaw.filtering with parameters of type Column

Constructor and Description
TwoColumnFilter(Column columnToCompareAgainst)
TwoColumnFilter(ColumnReference reference, Column otherColumn)

Uses of Column in tech.tablesaw.filtering.composite

Methods in tech.tablesaw.filtering.composite with parameters of type Column

Modifier and Type	Method and Description
Selection	AllOf.apply(Column columnBeingFiltered)
Selection	IsTrue.apply(Column columnBeingFiltered)
Selection	AnyOf.apply(Column columnBeingFiltered)
Selection	IsFalse.apply(Column columnBeingFiltered)

Uses of Column in tech.tablesaw.io

Methods in tech.tablesaw.io that return Column

Modifier and Type	Method and Description
static Column	TypeUtils.newColumn(String name, ColumnType type) Constructs and returns a column for the given name and type

Uses of Column in tech.tablesaw.selection

Methods in tech.tablesaw.selection with parameters of type Column

Modifier and Type	Method and Description
default Selection	Selection.apply(Column columnBeingFiltered)

Uses of Column in tech.tablesaw.sorting

Methods in tech.tablesaw.sorting with parameters of type Column

Modifier and Type	Method and Description
static it.unimi.dsi.fastutil.ints.IntComparator	SortUtils.rowComparator(Column column, Sort.Order order) Returns a comparator for the column matching the specified name

Uses of Column in tech.tablesaw.table

Methods in tech.tablesaw.table that return Column

Modifier and Type	Method and Description
abstract Column	Relation.column(int columnIndex) Returns the column at columnIndex (0-based)
Column	TableSlice.column(int columnIndex)
Column	Relation.column(String columnName) Returns the column with the given columnName, ignoring case

Methods in tech.tablesaw.table that return types with arguments of type Column

Modifier and Type	Method and Description
abstract List<Column>	Relation.columns() Returns a list of all the columns in the relation
List<Column>	TableSlice.columns()
List<Column>	Relation.columns(int... columnIndices) Returns the columns whose indices are given in the input array
List<Column>	Relation.columns(String... columnName) Returns the columns whose names are given in the input array
List<Column>	Relation.columnsOfType(ColumnType type)

Methods in tech.tablesaw.table with parameters of type Column

Modifier and Type	Method and Description
abstract Relation	Relation.addColumns(Column... cols)
TableSlice	TableSlice.addColumns(Column... column)
abstract int	Relation.columnIndex(Column col) Returns the index of the given column
int	TableSlice.columnIndex(Column column)
boolean	Relation.containsColumn(Column column)
abstract Relation	Relation.removeColumns(Column... columns) Removes the given columns from the receiver
TableSlice	TableSlice.removeColumns(Column... columns)

Constructors in tech.tablesaw.table with parameters of type Column

Constructor and Description
RollingColumn(Column column, int window)