title: R to optimize marketing strategy
body: <p>I am new to R and I am trying to run an optimization function.
     I have 3 Variables:
     $Revenue
     $Spent on a tv campaign
     $Spent on a radio campaign</p>
  
  <p>How do I optimize my budget allocation across tv and radio campaign?
  in other words, how do I find the optimal spend for each individual driver</p>