or/and conditions in same scan

   I am loving Bullcharts but I am still on a learning curve with Bullscipt. Apologies to members if it�s something I�ve missed..Could someone please write a simple Bullscript which demonstrates how to write two sets of �alternative� conditions all in the �same� scan�like Excel�s IF(OR(AND(�,�),(AND�,�)).
For example,
I want to grab both sets of contingencies in the �same� scan..
EITHER 
the close is greater than the simple 14 day MA of the close AND the MACD Histogram is greater than 0
OR, 
the close is greater than the simple 14 day MA of the close AND Directional Movement +DI crosses above the Directional Movement -DI

{Variables}
_var1 := ma(Close,14,Simple);
_var2 := formula("MACD Histogram", 12, 26, 9);
_var3 := formula("Directional Movement +DI", 14);
_var4 := formula("Directional Movement -DI", 14);

{Condition}
{EITHER} filter := (Close > _var1)
              and (_var2 > 0)

{OR}
              and (Close > _var1)
              and (cross(_var3, _var4));
filter;

Thank you for your help.

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cudderbean Members Profile Send Private Message Find Members Posts Add to Buddy List Regular Joined: 02 Oct 2006 Location: Thailand Posts: 40	Post Options Post Reply Quote cudderbean Report Post Quote Reply Topic: or/and conditions in same scan Posted: 02 Oct 2006 at 11:41am
	I am loving Bullcharts but I am still on a learning curve with Bullscipt. Apologies to members if it�s something I�ve missed..Could someone please write a simple Bullscript which demonstrates how to write two sets of �alternative� conditions all in the �same� scan�like Excel�s IF(OR(AND(�,�),(AND�,�)). For example, I want to grab both sets of contingencies in the �same� scan.. EITHER the close is greater than the simple 14 day MA of the close AND the MACD Histogram is greater than 0 OR, the close is greater than the simple 14 day MA of the close AND Directional Movement +DI crosses above the Directional Movement -DI {Variables} _var1 := ma(Close,14,Simple); _var2 := formula("MACD Histogram", 12, 26, 9); _var3 := formula("Directional Movement +DI", 14); _var4 := formula("Directional Movement -DI", 14); {Condition} {EITHER} filter := (Close > _var1) and (_var2 > 0) {OR} and (Close > _var1) and (cross(_var3, _var4)); filter; Thank you for your help.

cudderbean Members Profile Send Private Message Find Members Posts Add to Buddy List Regular Joined: 02 Oct 2006 Location: Thailand Posts: 40	Post Options Post Reply Quote cudderbean Report Post Quote Reply Posted: 10 Oct 2006 at 1:11am
	I think I've answered my own question by doing the obvious... RTBM - "Read The Blinking Manual!". Durrrrh! I'm always like this with new software, like a kid, rip open the Christmas parcel and start playing without reading the instructions. Anyway, for the benefit of other newbies in the same boat as me, here is the solution: Under the section Logical Operators in the Bullscript Help Files: "Note in the table above that AND has a higher order of precedence than OR. The AND and OR operators behave like multiply and plus with respect to each other. For example, the expression: "tea OR coffee AND sugar" is actually interpreted to be "tea OR (coffee AND sugar)". Parentheses must be manually added to force the OR to have a higher precedence, such as in: "(tea OR coffee) AND sugar" This may seem counter intuitive at first, but it is standard in most computer languages." Here's the answer I was looking for. Note the brackets! {Variables} _var1 := ma(Close,14,Simple); _var2 := formula("MACD Histogram", 12, 26, 9); _var3 := formula("Directional Movement +DI", 14); _var4 := formula("Directional Movement -DI", 14); {Condition} filter := ((Close > _var1) and (_var2 > 0)) or ((Close > _var1) and (cross(_var3, _var4))); filter; Thumbs up to the BC development team: I'm thoroughly enjoying your product.