Filtering assoc rules using subset method.

Hello,
Am trying to filter the association rules using subset method of arules package.
I have a vector of items that are to be filtered from LHS/RHS.
Here is the sample code that i have used.
metalAssoc.mod <-ore.odmAssocRules(~.,NBAssocreqOF,case.id.column="TRANSACTION_VALUE",item.id.column = "PARAM_NAME",
item.value.column = "PARAM_VALUE_BIN",min.support = 0.05 ,min.confidence = 0.5,max.rule.length = 5)
rules <- rules(metalAssoc.mod)
arules <- ore.pull(rules)
1. Able to filter the rules using below condition.
arules.subset <- subset(arules, subset= rhs %pin% "Temperature" | rhs %pin% "Pressure" )
2. We get a string like "Temperature";"Pressure" to the function as input.
Tried forming a vector out of the string and
arules.subset <- subset(arules, subset= rhs %pin% c( "Temperature", "Pressure")
This command throws the below error.
Error in rhs %in% c("Pressure", "Temperature") :
table contains an unknown item label
3. Tried forming a string str with valuerhs %pin% "Temperature" | rhs %pin% "Pressure"
arules.subset <- subset(arules, subset= str )
Got the below error
Error in .translate_index(i, rownames(x), nrow(x)) :
subscript out of bounds
Our aim is to filter the rules based on the list of items from RHS/LHS that are passed as a function variable.
Any help is greatly appreciated.
Thanks,
Swathi.

Swathi,
If I understand correctly, the following example from the ore.odmAssocRules help file accomplishes what you want using the functions itemsets() along with subset():
set.seed(7654)
id <- 1:10
color <- sample(c("B", "Y", "W", "G"), 10, replace=TRUE)
shape <- sample(c("tri", "rect", "round"), 10, replace=TRUE)
state <- sample(c("MA", "CA", "NY"), 10, replace=TRUE)
data3.ore <- ore.frame(ID=id, COLOR=color, SHAPE=shape, STATE=state)
ar.mod3 <- ore.odmAssocRules(~., data3.ore, case.id.column = "ID",
min.support = 0.15, min.confidence = 0.05, max.rule.length = 2)
rules <- subset(rules(ar.mod3), min.confidence=0.5,
lhs=list(SHAPE="tri", COLOR="B"), orderby="lift")
itemsets <- subset(itemsets(ar.mod3), min.support=0.35)
To view the help file for ore.odmAssocRules, type at the R command prompt:
?ore.odmAssocRules
Sherry

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<Manish Garg> wrote in message news:[email protected]...
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