function declaration for R

(tf-defn ’(defn hello x y)) => ’(def hello (fn x y))

(!.R (defn ^{:inner true} hello x y(+ x y)) (hello 1 2)) => 3

transforms (df {:a [1 2] :b [3 4]}) to data.frame(a=c(1,2), b=c(3,4))

transform for for:array

transform for for:index

transform for for:iter

transform for for:object

transforms (formula lhs rhs) to an R formula: lhs ~ rhs

transform for infix if

transforms (library pkg) to library(“pkg”)