Function to plot a interest rate tree
ratetreegui()A plot of interest rate tree with user specified parameters.
The user inputs are as follows: Rate: to be entered in percent. For e.g. enter 5.0 for 5 percent u: up move factor- to be entered in decimals. For e.g. 1.25 d: down move factor- to be entered in decimals. For e.g. 0.80 q: probability of up move- to be entered in decimals. For e.g. 0.60 Rate tree steps: Clicking on the '+' and '-' respectively increases and decreases the value.
David G. Luenberger, "Investment Science", 2/E, Oxford University Press, 2013.