On 5/21/06, Brannon King <[EMAIL PROTECTED]> wrote:
Jay Sprenkle wrote: >> score(x,y) = max(score(x+n,y+n)-n*penalty) where n < drc(x+n,y+n) < 256 > > So at some 'sample' you have the score and drc, but not the x,y value? > The x,y values can be interpolated using some algebra and the surrounding > samples? Uh, no. Sorry my other emails were unclear. At all values that I do have, I have an x,y,score, and drc. I can calculate any value that is missing, though. The n in the above formula refers to all numbers between 0 and 256. I'm taking the max over all the data I have in that range: max for all data pieces that fall within n distance of the piece I'm calculating.
If I understand it right you'll definitely need a correlated subquery. You need one query to calculate the max() of the 257(0-256?) values. There must be some way to define which values should be used in that calculation for a specific piece (the distance). Is the distance geometric and calculated from x,y? In pseudo code something like this: select piece, ( sub query to calculate max where distance from desired_piece < 256 ) from blah where piece = desired_piece
