How to create a command/function/shortcut to call a chunk of codes in R?

Is there a way to create a command/function/shortcut to call a block of codes? It is the same as we block some lines of codes in a script, then press Ctrl+Enter (in Windows). I want to call the code chunk without the script. I only know that we can make a function with variables. Of course, it cannot be applied with something like this below because we have to input the variable, right?

make_dfs<- function() {
  df1<-data.frame(a=1, b=2, c=3)
  df2<-data.frame(d=4, e=5, f=6)
  df3<-data.frame(g=7, h=8, i=9)}

In the example above, I want to create df1, df2, and df3 instantly by only typing "make_dfs". The motivation for this is when I want to clean the temporary elements in my environment, I tend to think "maybe in the future I will need to create the same elements again".

I could not find suitable keywords for this issue, making my search was unsuccessful. I am still very new to R and programming. Please enlighten me, if there are some ways to do it or if my thinking is not correct.

Thank you.

Solution

Are you looking to create df1, df2, df3 in global environment?

Try this -

make_dfs<- function() {
  list2env(list(df1 = data.frame(a=1, b=2, c=3),
       df2 = data.frame(d=4, e=5, f=6),
       df3 = data.frame(g=7, h=8, i=9)), .GlobalEnv)
}
make_dfs()