[R] names.data.frame?

Leonard Mada |eo@m@d@ @end|ng |rom @yon|c@eu
Wed Nov 3 19:35:58 CET 2021

Dear List members,

Is there a way to access the default names() function?

I tried the following:

# Multi-variable polynomial

p = data.frame(x=1:3, coeff=1)

class(p) = c("pm", class(p));

names.pm = function(p) {
# .Primitive("names")(p) # does NOT function
# .Internal("names")(p) # does NOT function
# nms = names.default(p) # does NOT exist
# nms = names.data.frame(p) # does NOT exist
# nms = names(p); # obvious infinite recursion;
nms = names(unclass(p));


Would it be better to use dimnames.pm instead of names.pm?

I am not fully aware of the advantages and disadvantages of dimnames vs 



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