Moving Trendline

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//| Trigger Line |
//| Copyright ?2005 dwt5 and adoleh2000 |
//| http://www.metaquotes.net |
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#property copyright “Copyright ?2005 dwt5 and adoleh2000 ”
#property link “http://www.metaquotes.net/”

//—- indicator settings
#property indicator_chart_window
#property indicator_buffers 4
#property indicator_color1 Red
#property indicator_color2 Red
#property indicator_color3 Blue
#property indicator_color4 Blue

//—- buffers
double ExtMapBuffer1[];
double ExtMapBuffer2[];
double ExtMapBuffer3[];
double ExtMapBuffer4[];

int width;

extern int Rperiod = 20;
extern int LSMA_Period = 20;
int Draw4HowLong;
int shift;
int i;
int j;
int loopbegin;
int length;
int lsma_length;

double lengthvar;
double tmp ;
double tmp2 ;
double wt[];
double sum[];
double lsma_sum[];
double lsma_ma[];
double middle[];
int c;

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//| Custom indicator initialization function |
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int init()
{
//—- 7 additional buffers are used for counting.
IndicatorBuffers(7);

//—- drawing settings

SetIndexBuffer(0,ExtMapBuffer1);
SetIndexStyle(0,DRAW_LINE,STYLE_SOLID,4);

SetIndexBuffer(1,ExtMapBuffer2);
SetIndexStyle(1,DRAW_LINE,STYLE_SOLID,4);

SetIndexBuffer(2,ExtMapBuffer3);
SetIndexStyle(2,DRAW_LINE,STYLE_SOLID,4);

SetIndexBuffer(3,ExtMapBuffer4);
SetIndexStyle(3,DRAW_LINE,STYLE_SOLID,4);

SetIndexBuffer(4,sum);
SetIndexBuffer(5,wt);
SetIndexBuffer(6,lsma_ma);

//—- initialization done
return(0);
}

int start()

{ Draw4HowLong = Bars-Rperiod – 5; //Rperiod = 20
length = Rperiod; //length now = 20
lsma_length = LSMA_Period;
loopbegin = Draw4HowLong – length – 1;

for(shift = loopbegin; shift >= 0; shift–) // MAIN For Loop
{
sum[1] = 0;
for(i = length; i >= 1 ; i–) //LSMA loop
{
lengthvar = length + 1; //lengthvar = 21
lengthvar /= 3; //lengthvar = 7
tmp = 0;
tmp = ( i – lengthvar)*Close[length-i+shift]; //tmp = 20 – 7 * close[20-i+shift]
sum[1]+=tmp;
}
wt[shift] = sum[1]*6/(length*(length+1));
j = shift;
lsma_ma[shift] = wt[j+1] + (wt[j]-wt[j+1])* 2/(lsma_length+1);

//========== COLOR CODING ===========================================

ExtMapBuffer1[shift] = wt[shift];
ExtMapBuffer2[shift] = lsma_ma[shift];
ExtMapBuffer3[shift] = wt[shift];
ExtMapBuffer4[shift] = lsma_ma[shift];

if (wt[shift] < lsma_ma[shift])
{
ExtMapBuffer4[shift] = EMPTY_VALUE;
ExtMapBuffer3[shift] = EMPTY_VALUE;
}

}
}
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