Hello,


How can I convert Close colume of the below xts time series data into a list of Close values ? 
I'd like to plot Close values as a list.



&gt; head(zc)
                     Close
(10/15/12 09:00:00) 252.40
(10/15/12 09:01:00) 253.10
(10/15/12 09:02:00) 253.15
(10/15/12 09:03:00) 253.30
(10/15/12 09:04:00) 253.25
(10/15/12 09:05:00) 253.45


I tried the below command to plot it. But it failed.


&gt; plot(1:length(zc$Close),as.list(zc$Close))



Thanks in advance,


SK Park

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