search for: equalassign

Small suggestion for the documentation: Should the = operator for assignments, described on http://developer.r-project.org/equalAssign.html, now be included in the operator table in doc/manual/R-lang.texi? If so, one possibility could be after lines 1096/7: @item @code{<-} @tab Left assignment, binary @item @code{=} @tab Left assignment, binary Also, where is the best place to send suggestions of this nature? I didn't wa...

Hi, I'm somewhat new to R and I'm trying to figure out the difference between the operators <- and =. I've noticed that <- cannot be used to bind arguments to values in function definitions and calls. That is, f(x <- 2) sets x to 2 in the calling frame and then calls f(2) because the expression x <- 2 returns a value of 2, whereas f(x = 2) sets x = 2 in the

...y / value pairs to function arguments where `=` would trigger a failure. It can also convenient at the top level because the rhs is NOT evaluated/copied before entering the function, as it is with `=` and `<-`. My understanding based on : * John Chambers 2001 : https://developer.r-project.org/equalAssign.html * Matt Dowle 2011 : https://stackoverflow.com/questions/7033106/why-has-data-table-defined-rather-than-overloading is that `:=` used to be an equivalent to `<-`, along with `_`. At some point the decision was made to remove `_` and `:=`. BUT, and as I understand it started as a mistake, t...