Please recommend a program to perform curve fitting. I have some data series of self computed indexes on which I'd like to check if some formula can be found that consistently describes the data. The data series is 1 data point per second over 8 hours. 50 days of this series exist. I'd like to find a program that tries as many possible curve fitting techniques as possible (i.e. moving averages, least squares fit...) without me intervening too much (since I know only very little which math methods are available for this purpose). So far I found "stratasearch" but from the available online information it sounds as if it would not be so very well suited for the task.