R help - Oct 2013 - arules package apriori() fn error message XXXX

Hi everybody,

I am using the apriori() fn in the arules package and am encountered an error.

rules <- apriori(rdayst,parameter = list(support = 0.01, confidence = 0.6))

"You chose a very low absolute support count of 0. You might run of
memory."

I assume this is related to the value of .01 specified for the support
= argument. If so, what is a safe and reliable max value for support to try? Are
there other ways of addressing this problem?

Any insight is appreciated.

Thanks!

Dan