Displaying 1 result from an estimated 1 matches for "expra".
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expr
2013 Dec 13
1
Proper way to drop 'srcref' from an expression created via substitute(function() ...)?
First, why does this expression have a 'srcref' element:
> exprA <- substitute(function(x) a*x, list(a=2))
> print(exprA)
function(x) 2 * x
> str(as.list(exprA))
List of 4
$ : symbol function
$ :Dotted pair list of 1
..$ x: symbol
$ : language 2 * x
$ :Class 'srcref' atomic [1:8] 1 20 1 34 20 34 1 1
.. ..- attr(*, "srcfile")=C...