On Tue, Sep 23, 2008 at 5:25 AM, Adrian Try <[EMAIL PROTECTED]> wrote: > Hi again > > No, I really don't want the sum of them all, I want the sum of the >> group that has a negative value in the first column, and I want a >> second sum of the group that has a positive value in the first column. > > > Thanks a lot for the explanation. That makes a lot more sense now. > > Adrian >
Note that I could have added that once I have the sum of each side of these option trades I can then simply add the two numbers together to get the total result, so in the end it's all a sum of products anyway. However what I'm really trying to do is look at the velocity/acceleration of the parameters on each side of the trade to identify when is the right time to enter or exit. Thanks for your interest and help. Cheers, Mark --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
