Error when modifying names of the object returned by get()
On 15/02/2011 11:43 AM, John Edwards wrote:
I get the following error when I try to modify the names of the object returned by get(). Does anybody know how to do so? (I could use as.vector() to remove the names, but I'm interested in how to modify the object returned by get().)
You can probably do this by constructing a call to the `names<-` replacement function, but it's really bad style. Don't write R code that has external side effects if you can avoid it. In this case, you'll almost certainly get more maintainable code by writing your function to return a copy of x with new names, rather than trying to modify the original. Duncan Murdoch
$ cat main_get_name_assign.R
x=1:10
names(x)=letters[1:10]
names(get('x'))=LETTERS[1:10]
#names(x)=LETTERS[1:10]
x
$ Rscript main_get_name_assign.R
x=1:10
names(x)=letters[1:10]
names(get('x'))=LETTERS[1:10]
Error in names(get("x")) = LETTERS[1:10] :
target of assignment expands to non-language object
Execution halted
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