iHighest equivalent

[soheilpro]

Hi Everyone,
I was wondering if someone knows a function in forex tester that is similar to the iHighest function in Meta trader.
I am trying to re-write the Aroon indicator in forex tester.

Thanks

[dackjaniels]

Hi soheilpro,

The closest function to iHighest is FT's GetHighestValue (and to iLowest, FT's GetLowestValue), though you may have noticed they are not the same. iLowest returns the bar index of the lowest value in the specified range whereas GetLowestValue returns the lowest value (price) of the specified range (not the bar index).

I wrote the following functions a while ago as a direct equivalent to the iHighest and iLowest functions in MT4. Assuming you use Delphi you can simply copy and paste them in, if you use C++ you will need to use the principles to create your own function.

Also, bar shift can be stored in an integer so not sure why I used a double for the returned value, either way it still works.

Code: Select all

function  GetHighestValueIndex(ValueType: TValueType; StartIndex, count: integer): double;
var
  i: integer;
  v, tmp: double;

begin
  tmp := value(ValueType, StartIndex);
  result := StartIndex;
  for i:=1 to count - 1 do
    begin
      v := value(ValueType, StartIndex + i);
      if v >= tmp then
        Begin
          tmp := v;
          result := StartIndex + i;
        End;
    end;
end;


function  GetLowestValueIndex(ValueType: TValueType; StartIndex, count: integer): double;
var
  i: integer;
  v, tmp: double;

begin
  tmp := value(ValueType, StartIndex);
  result := StartIndex;
  for i:=1 to count - 1 do
    begin
      v := value(ValueType, StartIndex + i);
      if v <= tmp then
        Begin
          tmp := v;
          result := StartIndex + i;
        End;
    end;
end;



Hope this helps!

[soheilpro]

Hi DackJaniels,

Thanks Soo much for your response. much appreciated. the Aroon indicator is a trend detection indicator that works based on the highest high and lowest low index based on a predefined lookup period.
since you've already coded the required functions that is 95% of what this indicator does, i was wondering if you can kindly create the DLL for this indicator and save all the C++ programmers the time to rewrite the code in C.
This is only a suggestion. again i appreciate your kind response and assistance.
a more detailed description and rules for calculation for this indicator can be found below:

http://forex-indicators.net/aroon

[dackjaniels]

soheilpro, please check your PM.

Thanks,
Steve

[Tantalus]

The Aroon indicator and also the Aroon Oscillator are available on my website:

www.tantalusonline.com

Come take a look!

Brian-