Saving a single object within a function in R: RData file size is very large

Question

I am trying to save trimmed-down GLM objects in R (i.e. with all the \"non-essential\" characteristics set to NULL e.g. residuals, prior.weights, qr$qr).

As an example,

Answer 1

Do you find that you have the same problem when you name the arguments in your call to save?

I used:

subFn <- function(y, x){
             glmObject <- glm(y ~ x, family = "binomial")
             save(list = "glmObject", file = "FileName.RData")
}

mainFn <- function(y, x){ 
         subFn(y, x)
}

mainFn(y = rbinom(n = 10, size = 1, prob = 1 / 2), x = 1:10)

I saw that the file "FileName.RData" was created in my working directory. It is 6.6 kb in size.

I then use:

load("FileName.RData")

to load the contents, glmObject, to my global environment.