My formula has several conditions that would trigger a Buy or a Sell in a System Test. Signals for some stocks take a long time after the first day of data, which is not simple time dependency as when Mov(C,60,S) is undefined for 59 days. My Declining-Stock-Buy-Condition, for example, may rarely appear in a bullish stock and it seems that no Buy signals generate until Metastock 'sees' ALL potential Buy and Sell conditions as True once in a stock before it will 'initialize' the formula and generate its very first Buy or Sell.

In Roy's post on 'Metastock Formula Limitations', he mentioned that, " ...Equis came up with a fix for the deficient IsDefined() function and just forgot to tell anybody about it":

ExtFml("BBS.IfNotDefined",Mov(C,60,S),0);

Roy described that this generates a '0' or False in the 59 bars when this formula is undefined. Therefore other True elements of a formula are not held up from becoming initialized. Is this .dll available from Equis and usable in MSV10.0? If so, how do I load and use it? How does this differ from the 'Extend' .dll that Jose is offering?

For example, would I have to use this ExtFml for each of the multiple elements within the 3 conditions for a Buy and 3 conditions for a Sell? Many thanks for your help.