/*[[
	Name := Deterend Price Oscillator
	Author := hapsa
	Link := http://www.metaquotes.net/
	Notes := The Detrended Price Oscillator (DPO) is an indicator that attempts toeliminatethe trend in prices.
	Notes := Detrended prices allow you to more easily identify cycles and overbought/oversold levels.
	Notes := 
	Separate Window := Yes
	First Color := Blue
	First Draw Type := Line
	First Symbol := 217
	Use Second Data := No
	Second Color := Red
	Second Draw Type := Line
	Second Symbol := 218
]]*/
Input    : x_prd(14);
Variable : shift(0);
Variable : t_prd(0), dpo(0);

t_prd=x_prd/2+1;

SetLoopCount(0);
For shift=Bars-1 Downto 0 Begin
	dpo=C[shift]-iMAEx(x_prd,MODE_SMA,t_prd,PRICE_CLOSE,shift);
	SetIndexValue(shift,dpo);
End;