transactiondata-class: TransactionData

In quentinseifert/unnamed: Finds association rules

Description

The S4 class TransactionData characterises the entered transaction matrix using two different slots. An object of the class TransactionData can be analysed with show, summary ,plot, itemtail and tryminimum.

Usage

## S4 method for signature 'TransactionData'
show(object)

## S4 method for signature 'TransactionData'
summary(object)

## S4 method for signature 'TransactionData'
itemtail(object, support, absolute = FALSE,
  rare = FALSE)

## S4 method for signature 'TransactionData'
plot(x)

## S4 method for signature 'TransactionData'
tryminimum(object)

Arguments

object	Object of class TransactionData
support	User specified minimum support
absolute	Logical
rare	Logical
x	Object of class TransactionData

Methods (by generic)

• show: Shows number of transactions and items in the transaction matrix

• summary: Returns data.frame of each item in the transaction matrix and their frequencies

• itemtail: Returns data.frame of either the most freqeunt single items or the most rare single items. User can choose wether the occurence of the items is displayed in terms of absolute or relative values.

• plot: Bar plot of the most frequently occuring items displaying their absolute frequencies

• tryminimum: Provides the number of frequent items for four different minimum support values, giving an impression of the influence of the minimum support

Slots

data

Transaction matrix in the shape of a sparsematrix (ngCMatrix)

items

Character vector containing the item names of the trancastion matrix

quentinseifert/unnamed documentation built on Dec. 3, 2019, 11:31 p.m.