ElementaryCondition: R6 class representing an elementary condition.

In jaspeir/NIJ_Tabitha: Dominance-based Rough Set Approach and the DOMLEM Algorithm

Description

An elementary condition is a filter condition on a single attribute.

Details

This class stores the attribute, the filter value, and for dominance variables whether the value is a lower- or upper bound.

Public fields

attribute

the name of the attribute we filter on

value

the constant in the filter condition

isLowerBound

for dominance attributes whether the filter condition is a lower-bound or upper-bound

attributeType

the type of the attribute (ind, sim, or dom)

alpha

for similarity attributes the alpha parameter

beta

for similarity attributes the beta parameter

Methods

Public methods

• ElementaryCondition$new()

• ElementaryCondition$elementCover()

• ElementaryCondition$print()

• ElementaryCondition$toString()

• ElementaryCondition$equals()

• ElementaryCondition$clone()

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Method new()

Create a new ElementaryCondition object.

Usage

ElementaryCondition$new(attribute, value, it, isLowerBound = NA)

Arguments

attribute

the attribute we filter on

value

the value we use in the filter condition

it

the information table to use

isLowerBound

[optional] for dominance operators, whether the filter condition is a lower- or upper bound

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Method elementCover()

Method to calculate the set of objects matching this elementary condition.

Usage

ElementaryCondition$elementCover(it)

Arguments

it

the information table to use

Returns

the set of matching objects - set of object names

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Method print()

Print method.

Usage

ElementaryCondition$print()

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Method toString()

toString method.

Usage

ElementaryCondition$toString()

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Method equals()

Method to compare two ElementaryConditions.

Usage

ElementaryCondition$equals(other)

Arguments

other

the other elementary condition to compare to

Returns

a single boolean value

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Method clone()

The objects of this class are cloneable with this method.

Usage

ElementaryCondition$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.

jaspeir/NIJ_Tabitha documentation built on June 3, 2020, 12:38 a.m.