[ESS] How does one use "!!", etc. to get command history

[Marcus, Jeffrey]

The documentation on the command history completion for ess indicates that
you can use <meta> commands to go through the command history to find
matches to some command, e.g.:

M-r (comint-previous-matching-input) 

It also discusses using a csh-like approach, eg. '!!' will go to prev
command. 

However I can't figure out how to escape the interactive R window to enter
these commands. 

Thanks for any help. 

  Jeff


____________________________________________
JEFF MARCUS
Research Leader, Applied Data Analysis

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