|
PureBytes Links
Trading Reference Links
|
Larry,
Another suggestion: There are many SetOptions() -- see HELP -- and other
variables that need to be set in code to make sure it works the way you
want it to rather than taking the Settings from AA.
I have an include file I use for all my code that sets these up so I
don't forget or have to fiddle with the settings in AA so they don't
over-ride what you think you are doing.
--
Terry
-----Original Message-----
From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx] On
Behalf Of onelkm
Sent: Tuesday, October 03, 2006 06:35
To: amibroker@xxxxxxxxxxxxxxx
Subject: [amibroker] Re: Profit stops with loop - not working as it
should
Terry
Thanks for the suggestions. Since I took an example from the help
files, I assumed the the sellPrice arrays were set up correctly to
handle the issue you mentioned, but possibly not.
I think the logic for SellPrice is correct since the code looks to
see if the days high was greater than the profit stop sellprice, and
if it was, it then assigns the value of the sellprice to the array.
But somewhere I am missing something since the "sellprice" does not
register, instead the close of the days shows as the trade price.
Thanks
Larry
--- In amibroker@xxxxxxxxxxxxxxx, "Terry" <MagicTH@xxx> wrote:
>
> Well, it's not completely clear to me so here are some ideas:
>
>
>
> SellPrice is a built-in ARRAY used to hold the ARRAY of Sell prices
> which are normally set to Open or Close. It seems you are trying to
> change that array to mean something else, like your target price.
Plus
> it IS an ARRAY so when it's set it does not carry forward to the
next
> bar unless you code it to do so.
>
>
>
> Plus you are trying to set the SellPrice based on hitting a High,
but
> you have daily data. You don't know if the High came first or the
Low.
> Your code assumes the high always comes first.
>
>
>
> It's a lot of code to go through so the above (partial) analysis
may be
> off base. I hope it is not and gives you a place to start. I have
to do
> my own trading for the evening now :-)
>
> --
>
> Terry
>
>
>
> -----Original Message-----
> From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx]
On
> Behalf Of onelkm
> Sent: Monday, October 02, 2006 19:23
> To: amibroker@xxxxxxxxxxxxxxx
> Subject: [amibroker] Profit stops with loop - not working as it
should
>
>
>
> I am trying to learn loops by using the example below from the
help
>
> files. The sell price when the profit stop is hit should be
defined
>
> by the line:
>
> SellPrice[ i ] = Max( Open[ i ], ( 1 + firstProfitTarget * 0.01 ) *
> priceatbuy );
>
> Instead of this, the close for the day is the sell price. Why? I
am
>
> using Yahoo data with OHLC.
>
> Thanks in advance
>
> Larry
>
>
>
> /*Example 4: partial exit (scaling out) on profit target stops
>
> Scale In/Out - showing the number of scale-in and scale-out
>
> operations within given trade
>
> Example of code that exits 50% on first profit target, 50% on next
>
> profit target AND everything at trailing stop:*/
>
>
>
> SetOption("NoDefaultColumns",0);
>
> SetOption("InitialEquity",1000);
>
> SetOption("AllowSameBarExit",1);
>
> SetOption("ActivateStopsImmediately",1);
>
> SetOption("AllowPositionShrinking",1);
>
> SetOption("FuturesMode",0);
>
> SetOption("InterestRate",0);
>
> SetOption("MaxOpenPositions",1000);
>
> SetOption("MinShares",.001);
>
> SetOption("PriceBoundChecking",1) ;
>
> SetOption("CommissionMode",1); //% per trade
>
> SetOption("CommissionAmount",0);
>
> SetOption("MarginRequirement",100); //No margin
>
> SetOption("ReverseSignalForcesExit",1);
>
> SetOption("UsePrevBarEquityForPosSizing",1);
>
> SetTradeDelays(0,0,0,0);
>
>
>
> Buy = Cross( MA( C, 10 ), MA( C, 50 ) );
>
> Sell = 0;
>
>
>
> // the system will exit
>
> // 50% of position if FIRST PROFIT TARGET stop is hit
>
> // 50% of position is SECOND PROFIT TARGET stop is hit
>
> // 100% of position if TRAILING STOP is hit */
>
>
>
> FirstProfitTarget = 1; // profit
>
> SecondProfitTarget = 2;// in percent
>
> TrailingStop = 3;// also in percent
>
>
>
> priceatbuy=0;
>
> highsincebuy = 0;
>
>
>
> exit = 0;
>
>
>
> for( i = 0; i < BarCount; i++ )
>
> {
>
> if( priceatbuy == 0 AND Buy[ i ] )
>
> {
>
> priceatbuy = BuyPrice[ i ];
>
> }
>
>
>
> if( priceatbuy > 0 )
>
> {
>
> highsincebuy = Max( High[ i ], highsincebuy );
>
>
>
> if( exit == 0 AND High[ i ] >= ( 1 + FirstProfitTarget *
0.01 ) *
> priceatbuy )
>
>
>
> {
>
> // first profit target hit - scale-out
>
> exit = 1;
>
> SellPrice[ i ] = Max( Open[ i ], ( 1 +
firstProfitTarget *
> 0.01 ) * priceatbuy );
>
> Buy[ i ] = sigScaleOut;
>
> }
>
>
>
> if( exit == 1 AND High[ i ] >= ( 1 + SecondProfitTarget *
0.01 ) *
> priceatbuy )
>
> {
>
> // second profit target hit - exit
>
> exit = 2;
>
> SellPrice[ i ] = Max( Open[ i ], ( 1 + SecondProfitTarget
*
> 0.01 ) * priceatbuy );
>
> }
>
>
>
> if( Low[ i ] <= ( 1 - TrailingStop * 0.01 ) * highsincebuy )
>
> {
>
> // trailing stop hit - exit
>
> exit = 3;
>
> SellPrice[ i ] = Min( Open[ i ], ( 1 - TrailingStop *
0.01 ) *
> highsincebuy );
>
> }
>
>
>
> if( exit >= 2 )
>
> {
>
> Buy[ i ] = 0;
>
> Sell[ i ] = exit + 1; // mark appropriate exit code
>
> exit = 0;
>
> priceatbuy = 0; // reset price
>
> highsincebuy = 0;
>
> }
>
> }
>
> }
>
>
>
> SetPositionSize( 100, spsPercentOfEquity );
>
> SetPositionSize( 50, spsPercentOfPosition * ( Buy ==
>
> sigScaleOut ) ); // scale out 50% of position
>
Please note that this group is for discussion between users only.
To get support from AmiBroker please send an e-mail directly to
SUPPORT {at} amibroker.com
For other support material please check also:
http://www.amibroker.com/support.html
Yahoo! Groups Links
|