tech.tablesaw.mapping

Interface StringMapUtils

All Superinterfaces:

Column

All Known Subinterfaces:

CategoryColumnUtils, CategoryFilters

All Known Implementing Classes:

CategoryColumn

public interface StringMapUtils
extends Column

String utility functions. Each function takes one or more String columns as input and produces another Column as output. The resulting column need not be a string column.

Method Summary

Modifier and Type	Method and Description
default CategoryColumn	abbreviate(int maxWidth)
default CategoryColumn	commonPrefix(Column column2)
default CategoryColumn	commonSuffix(Column column2)
default Column	distance(Column column2) Returns a column containing the levenshtein distance between the two given string columns
default CategoryColumn	join(Column column2, String delimiter)
default CategoryColumn	lowerCase()
default CategoryColumn	padEnd(int minLength, char padChar)
default CategoryColumn	padStart(int minLength, char padChar)
default CategoryColumn	replaceAll(String regex, String replacement)
default CategoryColumn	replaceFirst(String regex, String replacement)
default CategoryColumn	substring(int start)
default CategoryColumn	substring(int start, int end)
default CategoryColumn	trim()
default CategoryColumn	upperCase()

Methods inherited from interface tech.tablesaw.columns.Column

append, appendCell, asBytes, asDoubleArray, byteSize, clear, columnMetadata, columnWidth, comment, copy, countMissing, countUnique, difference, emptyCopy, emptyCopy, first, first, getString, id, isEmpty, isMissing, isNotMissing, last, last, metadata, name, print, rolling, rowComparator, setComment, setName, size, sortAscending, sortDescending, subset, summary, title, type, unique

Method Detail

upperCase

default CategoryColumn upperCase()

lowerCase

default CategoryColumn lowerCase()

trim

default CategoryColumn trim()

replaceAll

default CategoryColumn replaceAll(String regex,
                                  String replacement)

replaceFirst

default CategoryColumn replaceFirst(String regex,
                                    String replacement)

substring

default CategoryColumn substring(int start,
                                 int end)

substring

default CategoryColumn substring(int start)

abbreviate

default CategoryColumn abbreviate(int maxWidth)

padEnd

default CategoryColumn padEnd(int minLength,
                              char padChar)

padStart

default CategoryColumn padStart(int minLength,
                                char padChar)

commonPrefix

default CategoryColumn commonPrefix(Column column2)

commonSuffix

default CategoryColumn commonSuffix(Column column2)

distance

default Column distance(Column column2)

Returns a column containing the levenshtein distance between the two given string columns

join

default CategoryColumn join(Column column2,
                            String delimiter)