Hello Everyone!

NULL replacement will change expression object into list:

>
> te <- expression(a=23*4, b=33-2)
> te
expression(a = 23 * 4, b = 33 - 2)

> te[["a"]] <- quote(blabla) #ok
> te
expression(a = blabla, b = 33 - 2)

> te[["a"]] <- NULL #change to list
> te
$b
33 - 2

I am on w32, version 2.11.1 (2010-05-31)

Regards,
Vitally.

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