Create a numeric vector with names in one statement?

Question

I\'m trying to set the default value for a function parameter to a named numeric. Is there a way to create one in a single statement? I checked ?numeric and ?vector but it

Answer 1

The convention for naming vector elements is the same as with lists:

newfunc <- function(A=1, B=2) { body}  # the parameters are an 'alist' with two items

If instead you wanted this to be a parameter that was a named vector (the sort of function that would handle arguments supplied by apply):

newfunc <- function(params =c(A=1, B=2) ) { body} # a vector wtih two elements

If instead you wanted this to be a parameter that was a named list:

newfunc <- function(params =list(A=1, B=2) ) { body} 
    # a single parameter (with two elements in a list structure