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2011 Mar 24
3
Extract the names of the arguments in an "expression"
...approach);
ii) it does not work if some of the arguments, for instance 'rho',
exist in the workspace. Despite a new environment is created to evaluate the
expression, objects are also searched in the parent environment. The search
should somehow stick to the new environment (called 'tmpe' in expr.args());
iii) it does not work if the name of an argument coincides with the
name of a function (for instance 'gamma').
Is there any function to do this task? If not, I would appreciate some
guidance to improve the function expr.args().
> expr.args <- function(x)
{...