How can I load an object into a variable name that I specify from an R data file?

Question

When you save a variable in an R data file using save, it is saved under whatever name it had in the session that saved it. When I later go to load it from anot

Answer 1

You can create a new environment, load the .rda file into that environment, and retrieve the object from there. However, this does impose some restrictions: either you know what the original name for your object is, or there is only one object saved in the file.

This function returns an object loaded from a supplied .rda file. If there is more than one object in the file, an arbitrary one is returned.

load_obj <- function(f)
{
    env <- new.env()
    nm <- load(f, env)[1]
    env[[nm]]
}