Price-SMA Crossover

38 0 3
If Price > SMA , show green bars, else red
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//  Copyright by HPotter v1.0 20/06/2014
// Modified by Vats, Due thanks to HPotter
// This modified version uses crossover of price (close) and its simple moving average (default 20 period SMA)

// The Moving Average Crossover trading strategy is possibly the most popular
// trading strategy in the world of trading. First of them were written in the
// middle of XX century, when commodities trading strategies became popular.
// This strategy is a good example of so-called traditional strategies. 
// Traditional strategies are always long or short. That means they are never 
// out of the market. The concept of having a strategy that is always long or 
// short may be scary, particularly in today’s market where you don’t know what 
// is going to happen as far as risk on any one market. But a lot of traders 
// believe that the concept is still valid, especially for those of traders who 
// do their own research or their own discretionary trading. 
// This version uses crossover of moving average and its exponential moving average. 
study(title="Price-SMA Crossover", shorttitle="Price-SMA Crossover", overlay = true)
LengthSMA = input(20,minval=2)
xSMA = sma(close, LengthSMA)
pos = iff(xSMA < close , 1,
	    iff(xSMA > close, -1, nz(pos[1], 0))) 
barcolor(pos == -1 ? red: pos == 1 ? lime : blue)
plot(close, color=white, title="MA")
plot(xSMA, color=lime, title="SMA")
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