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.sorting
tech.tablesaw.table

Uses of Column in tech.tablesaw.aggregate

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

Modifier and Type	Class and Description
class	AggregateFunction<INCOL extends Column<?>,OUT> A partial implementation of aggregate functions to summarize over a numeric 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, 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, 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, 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
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
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
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<T> A column type that can be summarized, or serve as a grouping variable in cross tabs or other aggregation operations.
interface	NumericColumn<T>

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
class	FloatColumn
class	IntColumn
class	LongColumn
class	NumberColumn<T extends Number>
class	ShortColumn
class	StringColumn A column that contains String values.
class	TextColumn 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<Boolean>	BooleanColumn.append(Column<Boolean> column, int row)
Column<String>	TextColumn.append(Column<String> column, int row)
Column<String>	StringColumn.append(Column<String> column, int row)
Column<?>	Table.column(int columnIndex) Returns the column at the given index in the column list
Column<?>[]	Table.columnArray()
Column<?>	ColumnType.create(String name)
default <R> Column<R>	NumericColumn.mapInto(DoubleFunction<? extends R> fun, Column<R> into) Maps the function across all rows, appending the results to the provided Column
Column<Boolean>	BooleanColumn.set(int row, Column<Boolean> column, int sourceRow)
Column<String>	TextColumn.set(int row, Column<String> column, int sourceRow)
Column<String>	StringColumn.set(int row, Column<String> column, int sourceRow)
Column<Boolean>	BooleanColumn.setMissing(int i)
Column<LocalDate>	DateColumn.setMissing(int i)
Column<String>	TextColumn.setMissing(int i)
Column<LocalDateTime>	DateTimeColumn.setMissing(int i)
Column<Short>	ShortColumn.setMissing(int i)
Column<Long>	LongColumn.setMissing(int i)
Column<Float>	FloatColumn.setMissing(int i)
Column<String>	StringColumn.setMissing(int i)

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
BooleanColumn	BooleanColumn.append(Column<Boolean> column)
Column<Boolean>	BooleanColumn.append(Column<Boolean> column, int row)
DoubleColumn	DoubleColumn.append(Column<Double> column)
DoubleColumn	DoubleColumn.append(Column<Double> column, int row)
FloatColumn	FloatColumn.append(Column<Float> column)
FloatColumn	FloatColumn.append(Column<Float> column, int row)
IntColumn	IntColumn.append(Column<Integer> column)
IntColumn	IntColumn.append(Column<Integer> column, int row)
DateColumn	DateColumn.append(Column<LocalDate> column)
DateColumn	DateColumn.append(Column<LocalDate> column, int row)
DateTimeColumn	DateTimeColumn.append(Column<LocalDateTime> column)
DateTimeColumn	DateTimeColumn.append(Column<LocalDateTime> column, int row)
TimeColumn	TimeColumn.append(Column<LocalTime> column)
TimeColumn	TimeColumn.append(Column<LocalTime> column, int row)
LongColumn	LongColumn.append(Column<Long> column)
LongColumn	LongColumn.append(Column<Long> column, int row)
ShortColumn	ShortColumn.append(Column<Short> column)
ShortColumn	ShortColumn.append(Column<Short> column, int row)
TextColumn	TextColumn.append(Column<String> column)
StringColumn	StringColumn.append(Column<String> column)
Column<String>	TextColumn.append(Column<String> column, int row)
Column<String>	StringColumn.append(Column<String> column, int row)
int	Table.columnIndex(Column<?> column) Returns the index of the given column (its position in the list of columns)
default boolean	ColumnType.compare(int rowNumber, Column<?> temp, Column<?> original)
default boolean	ColumnType.compare(int rowNumber, Column<?> temp, Column<?> original)
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
default <R> Column<R>	NumericColumn.mapInto(DoubleFunction<? extends R> fun, Column<R> into) Maps the function across all rows, appending the results to the provided Column
BooleanColumn	BooleanColumn.max(Column<Boolean> other)
DoubleColumn	DoubleColumn.max(Column<Double> other)
FloatColumn	FloatColumn.max(Column<Float> other)
IntColumn	IntColumn.max(Column<Integer> other)
DateColumn	DateColumn.max(Column<LocalDate> other)
DateTimeColumn	DateTimeColumn.max(Column<LocalDateTime> other)
TimeColumn	TimeColumn.max(Column<LocalTime> other)
LongColumn	LongColumn.max(Column<Long> other)
ShortColumn	ShortColumn.max(Column<Short> other)
StringColumn	StringColumn.max(Column<String> other)
BooleanColumn	BooleanColumn.min(Column<Boolean> other)
DoubleColumn	DoubleColumn.min(Column<Double> other)
FloatColumn	FloatColumn.min(Column<Float> other)
IntColumn	IntColumn.min(Column<Integer> other)
DateColumn	DateColumn.min(Column<LocalDate> other)
DateTimeColumn	DateTimeColumn.min(Column<LocalDateTime> other)
TimeColumn	TimeColumn.min(Column<LocalTime> other)
LongColumn	LongColumn.min(Column<Long> other)
ShortColumn	ShortColumn.min(Column<Short> other)
StringColumn	StringColumn.min(Column<String> other)
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)
Column<Boolean>	BooleanColumn.set(int row, Column<Boolean> column, int sourceRow)
DoubleColumn	DoubleColumn.set(int row, Column<Double> column, int sourceRow)
FloatColumn	FloatColumn.set(int row, Column<Float> column, int sourceRow)
IntColumn	IntColumn.set(int row, Column<Integer> column, int sourceRow)
DateColumn	DateColumn.set(int row, Column<LocalDate> column, int sourceRow)
DateTimeColumn	DateTimeColumn.set(int row, Column<LocalDateTime> column, int sourceRow)
TimeColumn	TimeColumn.set(int row, Column<LocalTime> column, int sourceRow)
LongColumn	LongColumn.set(int row, Column<Long> column, int sourceRow)
ShortColumn	ShortColumn.set(int row, Column<Short> column, int sourceRow)
Column<String>	TextColumn.set(int row, Column<String> column, int sourceRow)
Column<String>	StringColumn.set(int row, Column<String> column, int sourceRow)
BooleanColumn	BooleanColumn.set(Selection condition, Column<Boolean> other)
DoubleColumn	DoubleColumn.set(Selection condition, Column<Double> other)
FloatColumn	FloatColumn.set(Selection condition, Column<Float> other)
IntColumn	IntColumn.set(Selection condition, Column<Integer> other)
DateColumn	DateColumn.set(Selection condition, Column<LocalDate> other)
DateTimeColumn	DateTimeColumn.set(Selection condition, Column<LocalDateTime> other)
TimeColumn	TimeColumn.set(Selection condition, Column<LocalTime> other)
LongColumn	LongColumn.set(Selection condition, Column<Long> other)
ShortColumn	ShortColumn.set(Selection condition, Column<Short> other)
StringColumn	StringColumn.set(Selection condition, Column<String> other)
Summarizer	Table.summarize(Column<?> numberColumn, AggregateFunction<?,?>... function)
Summarizer	Table.summarize(Column<?> column1, Column<?> column2, AggregateFunction<?,?>... function)
Summarizer	Table.summarize(Column<?> column1, Column<?> column2, AggregateFunction<?,?>... function)
Summarizer	Table.summarize(Column<?> column1, Column<?> column2, Column<?> column3, AggregateFunction<?,?>... function)
Summarizer	Table.summarize(Column<?> column1, Column<?> column2, Column<?> column3, 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)
Summarizer	Table.summarize(Column<?> column1, Column<?> column2, Column<?> column3, Column<?> column4, AggregateFunction<?,?>... function)
Summarizer	Table.summarize(Column<?> column1, Column<?> column2, Column<?> column3, Column<?> column4, 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<T> Partial implementation of the Column interface

Methods in tech.tablesaw.columns that return Column

Modifier and Type	Method and Description
Column<T>	Column.append(Column<T> column)
Column<T>	Column.append(Column<T> column, int row)
Column<T>	Column.append(T value)
Column<T>	Column.appendCell(String stringValue)
Column<T>	Column.appendCell(String stringValue, AbstractParser<?> parser)
Column<T>	Column.appendMissing() Appends a missing value appropriate to the column
Column<T>	Column.appendObj(Object value)
Column<T>	Column.copy() Returns a deep copy of the receiver
Column<Void>	SkipColumnType.create(String name)
abstract Column<T>	AbstractColumn.emptyCopy()
Column<T>	Column.emptyCopy() Returns a copy of the receiver with no data.
Column<T>	Column.emptyCopy(int rowSize) Returns an empty copy of the receiver, with its internal storage initialized to the given row size.
default Column<T>	Column.filter(Predicate<? super T> test) Returns a new Column of the same type with only those rows satisfying the predicate
default Column<T>	Column.first(int numRows)
default Column<T>	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<T>	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<T>	Column.last(int numRows)
default Column<T>	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.
default Column<T>	Column.map(Function<? super T,? extends T> fun) Maps the function across all rows, appending the results to a new Column of the same type
default <R> Column<R>	Column.mapInto(Function<? super T,? extends R> fun, Column<R> into) Maps the function across all rows, appending the results to the provided Column
default Column<T>	Column.max(Column<T> other) Returns a column containing the element-wise min between this column and other column TODO(lwhite) Override in column subtypes for better performance
default Column<T>	Column.min(Column<T> other) Returns a column containing the element-wise min between this column and other column TODO(lwhite) Override in column subtypes for better performance
Column<T>	Column.removeMissing()
default Column<T>	Column.sampleN(int n) Returns a column containing a random sample of the values in this column
default Column<T>	Column.sampleX(double proportion) Returns a table consisting of randomly selected values from this column.
Column<T>	Column.set(int row, Column<T> sourceColumn, int sourceRow)
Column<T>	Column.set(int row, T value)
default Column<T>	Column.set(Selection condition, Column<T> other) Updates this column where values matching the selection are replaced with the corresponding value from the given column
default Column<T>	Column.set(Selection rowSelection, T newValue) Conditionally update this column, replacing current values with newValue for all rows where the current value matches the selection criteria
Column<T>	Column.setMissing(int i)
Column<T>	AbstractColumn.setName(String name)
Column<T>	Column.setName(String name) Sets the columns name to the given string
default Column<T>	Column.sorted(Comparator<? super T> comp) Returns a new Column of the same type sorted according to the provided Comparator
default Column<T>	Column.subset(int[] rows)
Column<T>	Column.unique() Returns a column of the same type as the receiver, containing only the unique values of the receiver.
Column<T>	Column.where(Selection selection)

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

Modifier and Type	Method and Description
Column<T>	Column.append(Column<T> column)
Column<T>	Column.append(Column<T> column, int row)
default <R> Column<R>	Column.mapInto(Function<? super T,? extends R> fun, Column<R> into) Maps the function across all rows, appending the results to the provided Column
default Column<T>	Column.max(Column<T> other) Returns a column containing the element-wise min between this column and other column TODO(lwhite) Override in column subtypes for better performance
default Column<T>	Column.min(Column<T> other) Returns a column containing the element-wise min between this column and other column TODO(lwhite) Override in column subtypes for better performance
Column<T>	Column.set(int row, Column<T> sourceColumn, int sourceRow)
default Column<T>	Column.set(Selection condition, Column<T> other) Updates this column where values matching the selection are replaced with the corresponding value from the given column

Uses of Column in tech.tablesaw.columns.booleans

Subinterfaces of Column in tech.tablesaw.columns.booleans

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

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<LocalDate> 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 and Description
interface	DateTimeFilters
interface	DateTimeMapFunctions

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

Modifier and Type	Method and Description
static String	DateTimeMapFunctions.dateTimeColumnName(Column<LocalDateTime> column1, long value, TemporalUnit unit)

Uses of Column in tech.tablesaw.columns.numbers

Subinterfaces of Column in tech.tablesaw.columns.numbers

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

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 DoubleColumn	StringMapFunctions.distance(Column<?> column2) Returns a column containing the levenshtein distance between the two given string columns
default Selection	StringFilters.equalsIgnoreCase(Column<String> other)
default Selection	StringFilters.eval(BiPredicate<String,String> predicate, Column<String> otherColumn)
default Selection	StringFilters.isEqualTo(Column<String> other)
default Selection	StringFilters.isNotEqualTo(Column<String> other)
default StringColumn	StringMapFunctions.join(String separator, Column<?>... columns) Return a copy of this column with the given string appended
default Selection	StringFilters.startsWith(Column<String> other)

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.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

Fields in tech.tablesaw.table declared as Column

Modifier and Type	Field and Description
protected Column<?>	RollingColumn.column

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

Modifier and Type	Method and Description
<INCOL extends Column<?>,OUT> Column<?>	RollingColumn.calc(AggregateFunction<INCOL,OUT> function)

Methods in tech.tablesaw.table that return Column

Modifier and Type	Method and Description
<INCOL extends Column<?>,OUT> Column<?>	RollingColumn.calc(AggregateFunction<INCOL,OUT> function)
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
Column<?>	TableSlice.column(String columnName)

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)