Displaying 1 result from an estimated 1 matches for "lopezdelacalle".
2011 Mar 24
3
Extract the names of the arguments in an "expression"
Hi everybody:
I need to get the names of the arguments in an object of class "expression".
I've got the following expression:
> x <- expression(rho * cos(omega))
Is there any function or procedure that returns the names of the arguments
(in the example: "rho" and "omega")?
I tried a rough approach implemented in the function expr.args() shown
below. As