[R] What does .[foo] really mean?

[Bill.Venables at csiro.au]

It doesn't mean anything out of context.

Would you care to elaborate on precisely what is puzzling you?  
________________________________________
From: r-help-bounces at r-project.org [r-help-bounces at r-project.org] On Behalf Of Simon Tian [simon.yt at gmail.com]
Sent: 02 August 2009 14:50
To: r-help at r-project.org
Subject: [R] What does .[foo] really mean?

Hi R users,

I really want to know what exactly ".[foo]" means.

Thanks in advance. -Simon

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