SKLiF


The short answer to your question is that you need to use a PREV-based latch, or use an appropriate Simulation function to create same. Without resorting to these functions you cannot accurately program an exit that is dependant on some entry parameter.

Giving instructions on how to do this is not just a simple matter of trotting out a couple of lines of code.


Roy
MetaStock Tips & Tools

Below is an example of a Prev-based latch that references the entry signal:


[code:1:e15caf7f1f]
=======================
EntryPrice related exit
=======================
---8<------------------------------

{ EntryPrice reference, stoploss code example
for use in EntryPrice-related exit }

{ http://www.metastocktools.com }

{ User inputs }
x:=Input("EntryPrice: [1]Open, [2]High, [3]Low, [4]Close",1,4,3);
plot:=Input("[1]true EntryPrice, [2]System signals",1,2,1);
Stoploss:=1-Input("StopLoss %",0,100,4)/100;

{ Sample system Entry & Exit signals }
entry:=Cross(C,Mov(C,21,E));
exit:=Cross(Mov(C,10,E),C);

{ Reference Open/High/Low/Close choice }
prc:=If(x=1,O,If(x=2,H,If(x=3,L,C)));

{ Reference system entry price,
and apply to exit as a stoploss }
trade:=If(PREV=0,If(entry,prc,0),
If(exit OR C<PREV*Stoploss,0,PREV));

{ New entry signal }
NuEntry:=trade>0 AND Alert(trade=0,2);

{ New exit signal }
NuExit:=trade=0 AND Alert(trade>0,2);

{ True entry price }
EntryPrice:=ValueWhen(1,NuEntry,prc);

{ Plot on price chart }
If(plot=1,EntryPrice,NuEntry-NuExit)

---8<------------------------------

[/code:1:e15caf7f1f]


jose '-)

You can reference the above formula's EntryPrice in any MetaStock process, including TradeSim Explorations:

entryPrice:=FmlVar("EntryPrice related exit","ENTRYPRICE");


To set a stop properly based on the EntryPrice, you will need to do it as per the formula above - after all, that was the whole point of it.

{ Reference system entry price, and apply to exit as a stoploss }



jose '-)

Anything is possible, provided that enough resources are applied to the task.

MetaStock cannot access external data directly.
However, if you can export the TradeSim trade database as a text csv file, there are custom solutions available.


jose '-)