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.dates
tech.tablesaw.columns.datetimes
tech.tablesaw.columns.numbers
tech.tablesaw.columns.strings
tech.tablesaw.columns.times
tech.tablesaw.io
tech.tablesaw.sorting
tech.tablesaw.table
tech.tablesaw.util

Uses of Column in tech.tablesaw.aggregate

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

Modifier and Type	Class	Description
class	AggregateFunction<T,C extends Column>	A partial implementation of aggregate functions to summarize over a numeric column

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

Modifier and Type	Method	Description
abstract Boolean	BooleanAggregateFunction.summarize(Column column)

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

Constructor	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	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	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	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)

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

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

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

Modifier and Type	Method	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)
boolean	ColumnType.compare(int rowNumber, Column temp, Column original)
void	ColumnType.copy(it.unimi.dsi.fastutil.ints.IntArrayList rows, Column oldColumn, Column newColumn)
void	ColumnType.copyFromRows(it.unimi.dsi.fastutil.ints.IntArrayList rows, Column newColumn, Row row)
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	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	Description
class	AbstractColumn<T,C extends AbstractColumn<T,C>>	Partial implementation of the Column interface

Methods in tech.tablesaw.columns that return Column

Modifier and Type	Method	Description
Column	Column.appendCell(String stringValue)
Column	Column.appendCell(String stringValue, StringParser parser)
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	SkipColumnType.create(String name)
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	Description
void	Column.append(Column column)
boolean	SkipColumnType.compare(int rowNumber, Column temp, Column original)
void	SkipColumnType.copy(it.unimi.dsi.fastutil.ints.IntArrayList rows, Column oldColumn, Column newColumn)
void	SkipColumnType.copyFromRows(it.unimi.dsi.fastutil.ints.IntArrayList rows, Column newColumn, Row row)

Uses of Column in tech.tablesaw.columns.booleans

Subinterfaces of Column in tech.tablesaw.columns.booleans

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

Methods in tech.tablesaw.columns.booleans that return Column

Modifier and Type	Method	Description
Column	BooleanColumnType.create(String name)

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

Modifier and Type	Method	Description
boolean	BooleanColumnType.compare(int rowNumber, Column temp, Column original)
void	BooleanColumnType.copy(it.unimi.dsi.fastutil.ints.IntArrayList rows, Column oldColumn, Column newColumn)
void	BooleanColumnType.copyFromRows(it.unimi.dsi.fastutil.ints.IntArrayList rows, Column newColumn, Row row)

Uses of Column in tech.tablesaw.columns.dates

Subinterfaces of Column in tech.tablesaw.columns.dates

Modifier and Type	Interface	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	Description
boolean	DateColumnType.compare(int rowNumber, Column temp, Column original)
void	DateColumnType.copy(it.unimi.dsi.fastutil.ints.IntArrayList rows, Column oldColumn, Column newColumn)
void	DateColumnType.copyFromRows(it.unimi.dsi.fastutil.ints.IntArrayList rows, Column newColumn, Row row)
static String	DateMapFunctions.dateColumnName(Column column1, int value, TemporalUnit unit)

Uses of Column in tech.tablesaw.columns.datetimes

Subinterfaces of Column in tech.tablesaw.columns.datetimes

Modifier and Type	Interface	Description
interface	DateTimeFilters
interface	DateTimeMapFunctions

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

Modifier and Type	Method	Description
boolean	DateTimeColumnType.compare(int rowNumber, Column temp, Column original)
void	DateTimeColumnType.copy(it.unimi.dsi.fastutil.ints.IntArrayList rows, Column oldColumn, Column newColumn)
void	DateTimeColumnType.copyFromRows(it.unimi.dsi.fastutil.ints.IntArrayList rows, Column newColumn, Row row)

Uses of Column in tech.tablesaw.columns.numbers

Subinterfaces of Column in tech.tablesaw.columns.numbers

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

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

Modifier and Type	Method	Description
boolean	DoubleColumnType.compare(int rowNumber, Column temp, Column original)
void	DoubleColumnType.copy(it.unimi.dsi.fastutil.ints.IntArrayList rows, Column oldColumn, Column newColumn)
void	DoubleColumnType.copyFromRows(it.unimi.dsi.fastutil.ints.IntArrayList rows, Column newColumn, Row row)

Uses of Column in tech.tablesaw.columns.strings

Subinterfaces of Column in tech.tablesaw.columns.strings

Modifier and Type	Interface	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	Description
default StringColumn	StringMapFunctions.commonPrefix(Column column2)
default StringColumn	StringMapFunctions.commonSuffix(Column column2)
boolean	StringColumnType.compare(int rowNumber, Column temp, Column original)
void	StringColumnType.copy(it.unimi.dsi.fastutil.ints.IntArrayList rows, Column oldColumn, Column newColumn)
void	StringColumnType.copyFromRows(it.unimi.dsi.fastutil.ints.IntArrayList rows, Column newColumn, Row row)
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.times

Subinterfaces of Column in tech.tablesaw.columns.times

Modifier and Type	Interface	Description
interface	TimeFilters
interface	TimeMapFunctions

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

Modifier and Type	Method	Description
boolean	TimeColumnType.compare(int rowNumber, Column temp, Column original)
void	TimeColumnType.copy(it.unimi.dsi.fastutil.ints.IntArrayList rows, Column oldColumn, Column newColumn)
void	TimeColumnType.copyFromRows(it.unimi.dsi.fastutil.ints.IntArrayList rows, Column newColumn, Row row)

Uses of Column in tech.tablesaw.io

Methods in tech.tablesaw.io that return Column

Modifier and Type	Method	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.sorting

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

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

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

Modifier and Type	Method	Description
abstract List<Column>	Relation.columns()	Returns a list of all the columns in the relation
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>	TableSlice.columns()
List<Column>	Relation.columnsOfType(ColumnType type)

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

Modifier and Type	Method	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	Description
RollingColumn(Column column, int window)

Uses of Column in tech.tablesaw.util

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

Modifier and Type	Method	Description
static double[][]	DoubleArrays.to2dArray(Column... columns)
static double[][]	DoubleArrays.to2dArray(Column x, Column y)

Method parameters in tech.tablesaw.util with type arguments of type Column

Modifier and Type	Method	Description
static double[][]	DoubleArrays.to2dArray(List<Column> columnList)