Rob RSI Stoch MACD Combo Alert

//Created by Robert Nance on 5/28/16. Additional credit to vdubus.
//This was a special request from rich15stan. It combines my original RSI Stoch extremes with vdubus’ MACD VXI.
//This script will give you red or green columns as an indication for oversold/overbought,
//based upon the rsi and stochastic both being at certain levels. The default oversold is at 35.
//If Stochastic and RSI fall below 35, you will get a green column. Play with your levels to see how
//your stock reacts. It now adds the MACD crossover, plotted as a blue circle.