Function Geometric Mean Oscillator
Using a formula that is generally used for calculating investment over time to check gains on a commodity.
Geometric mean as described here: www.investopedia.com...06/geometricmean.asp
Geometric mean as described here: www.investopedia.com...06/geometricmean.asp
//@version=2
study(title='Function Geometric Mean Oscillator', overlay=false)
// ||-----------------------------------------------------------------------------------------||
// ||--- As described here:
// || http://www.investopedia.com/ask/answers/06/geometricmean.asp
// ||-----------------------------------------------------------------------------------------||
src = input(close)
length = input(10)
f_gmo(_src, _length)=>
_length_adjusted = _length < 1 ? 0 : _length
_perc_change = change(_src) / _src
_sum = 1
for _i = 0 to (_length_adjusted)
_sum := _sum * (1 + _perc_change[_i])
_return = pow(_sum, (1 / _length_adjusted)) - 1
//plot(ema(src, length), color=color(gray, 0), linewidth=5)
plot(f_gmo(src, length), color=color(blue, 0), linewidth=1)
hline(0)