Pattern detection from AFL formula to QS

Pattern detection from AFL formula to QS

Hmt Ptl
2013-02-04 12:39:20

Can anyone convert these two Amibroker AFLs into QuantShare formula?
They are for detecting cup & handle and head & shoulder patterns.

C&H:
http://www.amibroker.com/library/detail.php?id=306

H&S:
http://www.amibroker.com/library/detail.php?id=166

Hmt Ptl
2013-02-07 15:39:12

OK, seems no one knows how to convert it to QS formula.

Anyways,
LLV(period) function gives only lowest value within given past period, how to get "Number of bars 'passed' since lowest value?"
Is there any inbuilt function for this in QS?

What is equivalent of following in QS taken from http://www.amibroker.com/library/detail.php?id=306 ? :
------------------------------------
URPV=DRPV=0;
i=EndValue(BLH); // What is equivalent to this function in QS?
j=EndValue(BBC);
do
{
// What is equivalent of "IIF" function in QS formula?
URPV = IIf(Ref(Close,i*-1)>Ref(Close,(i+1)*-1),Ref(Volume,(i*-1))*Ref(Close,(i*-1))-Ref(Close,(i+1)*-1),URPV);
DRPV = IIf(Ref(Close,i*-1)<Ref(Close,(i+1)*-1),Ref(Volume,(i*-1))*Ref(Close,(i+1)*-1)-Ref(Close,(i*-1)),DRPV);
i++;
} while (i<j); // How to loop like this in QS formula?
----------------------------
If QS doesn't already have any such equivalent function then kindly do post C# equivalent code.

Thanks.

Hmt Ptl
2013-02-11 16:07:53

Why is this thread not getting any response? Quantshare you there?
Let me know if the information provided is not understandable or is incomplete or is not implementable!

QuantShare
2013-02-20 11:14:54

To get the number of bars passed since lowest value, use "LlvLb" function.

Regarding the loop, you can type something like this:

do
{
xxxx
}
while(i < j);

// "i" and "j" variable must be numeric values (not vectors)

Inside the loop you must work with values (not entire vectors).

Example:
- Instead of "Ref(Close,i*-1)", type "Close[i]"
- Instead of "IIf", type
if([condition])
{
xxxx
}
else
{
xxxx
}

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