Weekly Pivot Indicator

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Hello All,

This is my Weekly Pivots indicator. Please check the values if you wish use it.

//+------------------------------------------------------------------+
//| Weekly Pivots.mq4 |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2009, JYForex."

#property indicator_chart_window
#property indicator_buffers 7

#property indicator_color1 Blue
#property indicator_color2 Red
#property indicator_color3 Red
#property indicator_color4 Red
#property indicator_color5 Green
#property indicator_color6 Green
#property indicator_color7 Green

#property indicator_width1 3
#property indicator_width2 3
#property indicator_width3 3
#property indicator_width4 3
#property indicator_width5 3
#property indicator_width6 3
#property indicator_width7 3

double weekly_pp[];
double weekly_r1[];
double weekly_r2[];
double weekly_r3[];
double weekly_s1[];
double weekly_s2[];
double weekly_s3[];

void
get_weekly_pivot_points(int index, int wshift)
{
double h, c, l, r;
double pp, r1, r2, r3, s1, s2, s3;

h = iHigh(NULL, PERIOD_W1, wshift);
c = iClose(NULL, PERIOD_W1, wshift);
l = iLow(NULL, PERIOD_W1, wshift);
r = h - l;

pp = (h+l+c)/3;
r1 = (2 * pp) - l;
r2 = pp + r;
r3 = r2 + r;
s1 = (2 * pp) - h;
s2 = pp - r;
s3 = s2 - r;

weekly_pp[index] = pp;
weekly_r1[index] = r1;
weekly_r2[index] = r2;
weekly_r3[index] = r3;
weekly_s1[index] = s1;
weekly_s2[index] = s2;
weekly_s3[index] = s3;
}

int
get_day_shift(int b)
{
int i, r, p;
datetime t, td;

t = Time[b]; // Start time of the bar
td = iTime(Symbol(), PERIOD_W1, 0); // Start of week

r = 1;
for (i = 0; i < 1000; i++) {
if (t >= td) {
return (r);
}
td = iTime(Symbol(), PERIOD_W1, i);
r++;
}

return (r);

}

//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
//---- indicators
SetIndexStyle(0,DRAW_LINE);
SetIndexStyle(1,DRAW_LINE);
SetIndexStyle(2,DRAW_LINE);
SetIndexStyle(3,DRAW_LINE);
SetIndexStyle(4,DRAW_LINE);
SetIndexStyle(5,DRAW_LINE);
SetIndexStyle(7,DRAW_LINE);

SetIndexBuffer(0,weekly_pp);
SetIndexBuffer(1,weekly_r1);
SetIndexBuffer(2,weekly_r2);
SetIndexBuffer(3,weekly_r3);
SetIndexBuffer(4,weekly_s1);
SetIndexBuffer(5,weekly_s2);
SetIndexBuffer(6,weekly_s3);

IndicatorShortName("Weekly Pivots");
SetIndexLabel(0,"Weekly PP");
SetIndexLabel(1,"Weekly R1");
SetIndexLabel(2,"Weekly R2");
SetIndexLabel(3,"Weekly R3");
SetIndexLabel(4,"Weekly S1");
SetIndexLabel(5,"Weekly S2");
SetIndexLabel(6,"Weekly S3");
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function |
//+------------------------------------------------------------------+
int deinit()
{
//----

//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int start()
{
int limit, d;
int counted_bars=IndicatorCounted();
//---- last counted bar will be recounted
if(counted_bars>0) counted_bars--;
limit=Bars-counted_bars;

for(int i=0; i<limit; i++) {
d = get_day_shift(i);
get_weekly_pivot_points(i, d);
}

//----
return(0);
}
//+------------------------------------------------------------------+