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I use the same logic as Alex, with one minor change:
In place of
if marketposition <= 0 {....}
if marketposition >= 0 {....}
try
if marketposition < +1 {....} then buy {...}
if marketposition > -1 {....} then sell {...}
This is a bit cleaner.
Regards,
Leslie
>
> From: alex@xxxxxxxxxxxxxx (Alex Matulich)
> Date: 2003/01/07 Tue AM 11:45:05 EST
> To: massimiliano.scorpio@xxxxxxxxxxxx (Scorpio Massimiliano)
> CC: omega-list@xxxxxxxxxx
> Subject: Re: Avoid reentering
>
> Max wrote:
> >If the short moving average is above the long one I buy the market, the
> >opposite for selling.
> >If I want to use a trailing stop or profit taking and I exit from the
> >market, if the condition is still true, I immediatly re-enter in the same
> >position that I just closed.
>
> And you want to avoid this. It's easy, just use the marketposition
> variable. I'll assume the names ShortAverage and LongAverage for your
> moving averages:
>
> if marketposition <= 0 and ShortAverage>LongAverage then buy;
> if marketposition >= 0 and ShortAverage<LongAverage then sell;
>
> marketposition is a TS internal value; it is +1 if you have a long
> position already open, -1 if you have a short position already open,
> and 0 if you have no open positions.
>
> Therefore the two "if" statements above will enter the market ONLY
> when you have no open positions, or when your entry signal is
> opposite in direction to your open position.
>
> --
> ,|___ Alex Matulich -- alex@xxxxxxxxxxxxxx
> // +__> Director of Research and Development
> // \
> // __) Unicorn Research Corporation -- http://unicorn.us.com
>
>
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