[R] accessing information in lists

I've created a dataframe containing multiple ACF lists through the command rev.acf-apply(rev.matrix, 2, acf, na.action=na.contiguous, lag.max=12, plot=FALSE) where rev.matrix is an n by t matrix containing n time series in columns. I'd now like to pull out only the ACF information and store it

[R] A beginners question

Hi. I used R years ago at Uni but haven't touched it since, so I'm back to beginner level now. After looking through the manuals for a while I've come to the conclusion I don't know where to start looking for what I'm looking for, so I decided to ask for help. I've got a fairly simple data