I want to extract lhs items from a rule generated from arules.
For example,
{a,b,c} => {d}
I want to be able to extract a,b,c
and put it in a character vector, so I can iterate and do further processing based on these items.
At the moment, I can think of parsing the set of rules, converting it to a data frame and then separate these items using character manipulation/regex. I hope there's better way of extracting these items.