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If you have any delays in the trade entries/exits you must make
allowance for this in the loop. Buy[i] refers to the buy signal bar,
not entry bar which is where the BuPrice is taken
If bar delays are 1 bar then
for( i = 1; i < BarCount; i++ )
{
if( priceatbuy == 0 && Buy[ i-1 ] )
priceatbuy = BuyPrice[ i ];
--
Cheers
Graham Kav
AFL Writing Service
http://www.aflwriting.com
On 14/03/2008, pmxgs <pmxgs@xxxxxxxxxx> wrote:
> Hi Howard,
>
> yes, na example would be nice.
> I've tried to modify this one (included in the users guide), but I'm
> having trouble with referencing the entry price.
>
> /* a sample low-level implementation of Profit-target stop in AFL: */
>
> Buy = Cross( MACD(), Signal() );
>
> priceatbuy=0;
>
> for( i = 0; i < BarCount; i++ )
> {
> if( priceatbuy == 0 && Buy[ i ] )
> priceatbuy = BuyPrice[ i ];
>
> if( priceatbuy > 0 && SellPrice[ i ] > 1.1 * priceatbuy )
> {
> Sell[ i ] = 1;
> SellPrice[ i ] = 1.1 * priceatbuy;
> priceatbuy = 0;
> }
> else
> Sell[ i ] = 0;
> }
>
> thanks
>
> --- In amibroker@xxxxxxxxxxxxxxx, "Howard B" <howardbandy@xxx> wrote:
> >
>
> > Hi pm --
> >
> > You will need to write afl code that includes a loop that looks at
> the data
> > each bar. Do you know how to do that, or would like an example?
> >
> > Thanks,
> > Howard
> >
>
> > On Thu, Mar 13, 2008 at 6:09 AM, pmxgs <pmxgs@xxx> wrote:
> >
> > > Hi all,
> > >
> > > I would like to implement a "modified trailing stop", that just
> > > trails one time, for example I define the trailing stop to trail by
> > > 1%. Then, as soon as the price goes up by 1% the stop is raised to the
> > > entrypoint level (which is the usual way a trailing stop works), but
> > > from this moment on, the stop would stay at that point even if the
> > > price rose 10%.
> > > Can someone give an hint on how I can accomplish this?
> > >
> > > thanks
> > >
> > >
> > >
> >
>
>
>
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