[Rd] private variables in package.

From: Vladimir Eremeev <wl2776_at_gmail.com>
Date: Fri, 25 May 2007 03:21:56 -0700 (PDT)

I am sorry, my previous questions about hiding variables from users in a package were obscure and vague, and would like to clarify them.

This should be a basic question.
I am writing my first package.
It has several functions, which should be callable by users. These functions use several variables, and I would like to hide these variables from users.
How can I do it?

For example, the package has a function AB2C, which uses the variable ac9nw. If I add the file NAMESPACE, exporting only AB2C, then I get the error:   

   Error in AB2C(a, b, model.type) : object "ac9nw" not found

I also tried to include in the .onLoad function the code, defining these variables with <<-
However, this code has created all internal variables in the global

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