Package tech.tablesaw.api

Interface CategoricalColumn

All Superinterfaces:

Column

All Known Subinterfaces:

IntConvertibleColumn, NumberColumn

All Known Implementing Classes:

BooleanColumn, DateColumn, DoubleColumn, StringColumn

public interface CategoricalColumn
extends Column

A column type that can be summarized, or serve as a grouping variable in cross tabs or other aggregation operations.

The column data is discrete.

Supporting subtypes include: - StringColumn - BooleanColumn - DateColumn, - others

Floating point types (float, double) and near-continuous time columns (Time and DateTime) are not included.

Method Summary

Modifier and Type	Method	Description
default Table	countByCategory()

Methods inherited from interface tech.tablesaw.columns.Column

append, appendCell, appendMissing, asBytes, asDoubleArray, byteSize, clear, columnWidth, copy, countMissing, countUnique, create, emptyCopy, emptyCopy, first, getDouble, getString, getUnformattedString, inRange, isEmpty, isMissing, isMissing, isNotMissing, lag, last, lead, name, print, removeMissing, rolling, rowComparator, rows, sampleN, sampleX, setName, size, sortAscending, sortDescending, subset, summarizeIf, summary, title, type, unique, where

Method Detail

countByCategory

default Table countByCategory()