Association rules in R / Subset rules based on feature
I do not recall lhs or rhs having intervals. Can you share an example?
You can use the &quot;appearance&quot; parameter when calling apriori. You can find an example in the documentation of APappearance-class  of arules or at
http://r-statistics.co/Association-Mining-With-R.html under section &quot;How to Find Rules Related To Given Item/s&quot;