The forum wouldn't post this correctly when I used the mathematical symbols so I have typed "GT" for "greater than" and "LT" for "less than." I want to to test a long/short system that is always in the market. The system is to buy when: 1. Average close of X days GT average close of X days taken Y days ago; 2. Close LT close Y days ago; and 3. Close GT Close X + Y days ago. The system is to sell when: 1. Average close of X days LT average close of X days taken Y days ago; 2. Close GT close Y days ago; 3. Close LT Close X + Y days ago. For use in EST, I would go long when: mov(C,X,S) GT ref(mov(C,X,S),-Y) and C LT ref(C,-Y) and C GT ref(C,(-X-Y). I would go short when: mov(C,X,S) LT ref(mov(C,X,S),-Y) and C GT ref (C,-Y) and C LT ref(C,-X-Y). I would leave the "sell to close" and "buy to cover" fields blank. Would this be correct? Thanks!

Mark,

In the EST you need to provide a method to exit the long trade and swing to the short trade (and vice versa); i.e. you need to provide criteria for Buy, Sell, Sell Short and Buy To Cover. In order to always be in the market you will need to use some forward referencing tricks to "forecast" the exit by one bar with a one bar delay so the EST will swing long trades short and short trades long. Roy (MSTT) has written on this topic before: do a search and you will find many discussions on how to do this for your situation.


wabbit [:D]

EST will not swing from long to short or short to long on the same bar, unless you use forward referencing. If you don't "trick" the EST, your long trade will exit on the next bar and the short will enter on the bar after that one. If you want true swing trading i.e. to exit the long at open and open a new short on the same open, then you'll need to do some more work with the EST. As previously mentioned, Roy has written up some of his findings already.



wabbit [:D]

http://www.google.com.au/search?q=%2Bmstt+%2Best+%2Bforward+%2Bref+site%3Aforum.equis.combr>

wabbit [:D]