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itumly  
#1 Posted : Friday, July 13, 2007 1:42:52 PM(UTC)
itumly

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I am new to Metastock. I want to build Accumulation / Distribution Line, however I get an error that the following has occurred: division by zero 397; invalid exponentiation, invalid log; invalid power; modulus by zero; negative square root.

This is what I have as a formula (((C-L) - (H-C)) / (H-L)) * V

Assistance please

mstt  
#2 Posted : Friday, July 13, 2007 5:35:31 PM(UTC)
mstt

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Itumly

The problem is that the H-L divisor can equal zero, and when it does MetaStock reports the "Division by zero" error. There are several ways to get around the problem and they all revolve around replacing zero with an acceptable value. In practice it doesn't seem to matter what value is substituted for zero. Note that placing a multiplier before the division as I have done usually allows one set of brackets to be removed but it is not a part of the solution.

The following three substitutes all appear to work so take your pick. The first adds 1 to H-L when it is zero, the second replaces H-L with 1 when it is zero, and the third uses the most recent previous value of H-L that is greater than zero.

V * ((C-L) - (H-C)) / ((H-L) + (H-L=0));

V * ((C-L) - (H-C)) / If(H-L=0,1,H-L);

V * ((C-L) - (H-C)) / ValueWhen(1,H-L>0,H-L);

Roy

MetaStock Tips & Tools

itumly  
#3 Posted : Monday, July 16, 2007 8:59:47 AM(UTC)
itumly

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Joined: 7/13/2007(UTC)
Posts: 2

Mstt,

Thank you for the reply. It is much appreciated. I will test all three.

Itu.

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