how to find yesterday for pivot point calculation

[Forex Trader]

i am writing an EA to allow me to put a pivot point on my charts.

I would like to have it generic so it may appear on any given chart.

In order to achieve this i must get the high low and close from yesterdays trading session but not necessarily have the 1 day chart open.

I'm not having much luck.

Can someone point me in the right direction?

thanks

jimf

[Forex Trader]

which version of mt?
in mt4 its easy
this would be your indicator (i had that already written myself and threw a few things out, so it should match your needs)

//+------------------------------------------------------------------+
//| Caramilla EQ.mq4 |
//| xxxxxxxxxxxxxxx |
//| http://www.xxxxxxxxxx.org |
//+------------------------------------------------------------------+
#property copyright "Shrak"
#property link "http://www.xxxxxxxxxxx.org"
#property indicator_chart_window
#property indicator_buffers 1

double Buff0[];

datetime ThisArr[];
double BH[50];
double BL[50];
double BC[50];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
//---- indicators
SetIndexStyle(0,DRAW_LINE, EMPTY, 1, Blue);
SetIndexBuffer(0,Buff0);
SetIndexLabel(0,"Pivot");
SetIndexDrawBegin(0,0);
//----
//start();
return(0);
}
//+------------------------------------------------------------------+
//| Custor indicator deinitialization function |
//+------------------------------------------------------------------+
int deinit()
{
//---- TODO: add your code here

//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int start()
{
int counted_bars=IndicatorCounted();
ArrayResize(ThisArr, Bars);
ArrayCopySeries(ThisArr, MODE_TIME);

ArrayCopySeries(BH, MODE_HIGH, Symbol(), PERIOD_D1);
ArrayCopySeries(BL, MODE_LOW, Symbol(), PERIOD_D1);
ArrayCopySeries(BC, MODE_CLOSE, Symbol(), PERIOD_D1);

//---- TODO: add your code here
int od = 0;
int dd = 0;

double Pivot;

for (int i = 0; i <= Bars; i++) {
if (TimeDay(ThisArr[i]) != od) {
dd++;
Pivot = (BH[dd] + BC[dd] + BL[dd])/3;
od = TimeDay(ThisArr[i]);
}
Buff0[i] = Pivot ;
}

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

in mt3 its more difficult;)
you need to first run all bars back and save all the highs and lows of a day...
then you go the bars from left to right back to the most actual and everyday a new day is started you calculate the new pivot... i also wrote an indicator for mt3 but that is very slow... because of the 2 for-loops...

shrak

[Forex Trader]

thank you shrak.....

i am sorry to say that i am using an older version of mt (3 i think). i appreceiate your code example as well as your suggestion for collecting the information necessary to find 'yesterday'. it is as awkward as i suspected, but....
i'll get on it soon.

thanks again
jimf