PART 4: How To Remove Redundant Rules ? 13. Sometimes it is desirable to remove the rules that are subset of larger rules. To do so, use the below code to filter the redundant rules. subsetRules <- which(colSums(is.subset(rules, rules)) > 1) # get subset rules in vector length(subsetRules) 3913 rules <- rules[-subsetRules] # remove subset rules.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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PART 4: How To Remove Redundant Rules ?
13. Sometimes it is desirable to remove the rules that are subset of larger rules. To do so,
use the below code to filter the redundant rules.
subsetRules <- whích(colSums(is.subset(rules, rules)) > 1) # get subset rules in vector
length(subsetRules) > 3913
rules <- rules[-subsetRules] # remove subset rules.
Transcribed Image Text:PART 4: How To Remove Redundant Rules ? 13. Sometimes it is desirable to remove the rules that are subset of larger rules. To do so, use the below code to filter the redundant rules. subsetRules <- whích(colSums(is.subset(rules, rules)) > 1) # get subset rules in vector length(subsetRules) > 3913 rules <- rules[-subsetRules] # remove subset rules.
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