Package tech.tablesaw.columns.numbers

Interface NumberMapFunctions

All Superinterfaces:

Column, it.unimi.dsi.fastutil.doubles.DoubleIterable, Iterable<Double>

All Known Subinterfaces:

NumberColumn

All Known Implementing Classes:

DoubleColumn

public interface NumberMapFunctions
extends Column, it.unimi.dsi.fastutil.doubles.DoubleIterable

Method Summary

Modifier and Type	Method	Description
default NumberColumn	abs()	Returns a doubleColumn with the absolute value of each value in this column
default double	add(double val1, double val2)
default NumberColumn	add(Number value)
default NumberColumn	add(NumberColumn column2)
default NumberColumn	asPercent()	Return the elements of this column as the percentages of their value relative to the sum of all elements
default NumberColumn	asRatio()	Return the elements of this column as the ratios of their value and the sum of all elements
default NumberColumn	bin(int binCount)
default NumberColumn	cube()
default NumberColumn	cubeRoot()
default NumberColumn	cumProd()	Returns a new column with a cumulative product calculated
default NumberColumn	cumSum()	Returns a new column with a cumulative sum calculated
default NumberColumn	difference()
default double	divide(double val1, double val2)
default NumberColumn	divide(Number value)
default NumberColumn	divide(NumberColumn column2)
double	get(int i)
default NumberColumn	log10()	Returns the base 10 log of the values in this column as a NumberColumn.
default NumberColumn	log1p()	Returns the natural log of the values in this column, after adding 1 to each so that zero values don't return -Infinity
default NumberColumn	logN()	Returns the natural log of the values in this column as a NumberColumn.
default double	multiply(double val1, double val2)
default NumberColumn	multiply(Number value)
default NumberColumn	multiply(NumberColumn column2)
default NumberColumn	neg()	For each item in the column, returns the same number with the sign changed.
default NumberColumn	normalize()	Returns a transformation of the data in this column such that the result has a mean of 0, and a standard deviation of 1
default NumberColumn	pctChange()	Returns a new column with a percent change calculated
default NumberColumn	remainder(NumberColumn column2)
default NumberColumn	round()
default NumberColumn	roundInt()	Returns the rounded values as a NumberColumn.
default NumberColumn	sqrt()
default NumberColumn	square()	Returns a doubleColumn with the square of each value in this column
default double	subtract(double val1, double val2)	Returns the result of subtracting val2 from val1, after handling missing values
default NumberColumn	subtract(Number value)
default NumberColumn	subtract(NumberColumn column2)
double	sum()

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

Methods inherited from interface it.unimi.dsi.fastutil.doubles.DoubleIterable

forEach, forEach, iterator

Methods inherited from interface java.lang.Iterable

spliterator

Method Detail

normalize

default NumberColumn normalize()

Returns a transformation of the data in this column such that the result has a mean of 0, and a standard deviation of 1

asRatio

default NumberColumn asRatio()

Return the elements of this column as the ratios of their value and the sum of all elements

sum

double sum()

asPercent

default NumberColumn asPercent()

Return the elements of this column as the percentages of their value relative to the sum of all elements

subtract

default NumberColumn subtract(NumberColumn column2)

add

default NumberColumn add(NumberColumn column2)

multiply

default NumberColumn multiply(NumberColumn column2)

divide

default NumberColumn divide(NumberColumn column2)

add

default NumberColumn add(Number value)

subtract

default NumberColumn subtract(Number value)

divide

default NumberColumn divide(Number value)

multiply

default NumberColumn multiply(Number value)

add

default double add(double val1,
                   double val2)

multiply

default double multiply(double val1,
                        double val2)

divide

default double divide(double val1,
                      double val2)

subtract

default double subtract(double val1,
                        double val2)

Returns the result of subtracting val2 from val1, after handling missing values

square

default NumberColumn square()

Returns a doubleColumn with the square of each value in this column

sqrt

default NumberColumn sqrt()

cubeRoot

default NumberColumn cubeRoot()

cube

default NumberColumn cube()

remainder

default NumberColumn remainder(NumberColumn column2)

logN

default NumberColumn logN()

Returns the natural log of the values in this column as a NumberColumn.

log10

default NumberColumn log10()

Returns the base 10 log of the values in this column as a NumberColumn.

log1p

default NumberColumn log1p()

Returns the natural log of the values in this column, after adding 1 to each so that zero values don't return -Infinity

round

default NumberColumn round()

roundInt

default NumberColumn roundInt()

Returns the rounded values as a NumberColumn. Use roundLong() if larger

Throws:

ClassCastException - if the returned value will not fit in an int

abs

default NumberColumn abs()

Returns a doubleColumn with the absolute value of each value in this column

neg

default NumberColumn neg()

For each item in the column, returns the same number with the sign changed. For example: -1.3 returns 1.3, 2.135 returns -2.135 0 returns 0

difference

default NumberColumn difference()

cumSum

default NumberColumn cumSum()

Returns a new column with a cumulative sum calculated

cumProd

default NumberColumn cumProd()

Returns a new column with a cumulative product calculated

pctChange

default NumberColumn pctChange()

Returns a new column with a percent change calculated

bin

default NumberColumn bin(int binCount)

get

double get(int i)