Extrapolation Algorithm in PHP (fourth)

Freelancer is expected to write very well commented PHP code (for educational purposes). It must use one or more Non linear Extrapolation Algorithms. Code will be tested on a data set containing 60 samples and must produce at least 6 to 10 next (extrapolated) values. I will pay $50 FOR EACH method used. You can start with this pseudocode [login to view URL] from the example. Just do not use linear or exponential methods. Project will be awarded to the freelancer who can produce a sample code to test my data (see attached file). I don't need to see your code, just give me a link where it is hosted in your initial message. Read carefully. I will report all spammers.