> **Possible Duplicate:** > [Simple algorithm for online outlier detection of a generic time series](http://stats.stackexchange.com/questions/1142/simple-algorithm-for-online-outlier-detection-of-a-generic-time-series) <!-- End of automatically inserted text --> How could I get rid of sparky data in a descrete data set, but in a "smoother out" manner? Take for instance http://i.stack.imgur.com/vb44Q.png There are two sparks, at 20000, but the next one at 600 is also considered a spark. I've managed to get the very high ones to zero, by a = 2 b = 5 beta_dist = RealDistribution('beta', [a, b]) f(x) = x / 19968 normalized_insertions = [f(i) for i in insertions] insertions_pairs = [(i, beta_dist.distribution_function(i)) for i in normalized_insertions] plot_b = beta_dist.plot() show(list_plot(insertions_pairs)+plot_b) No idea how to go about the lower ones. The maximul should be reached at 100, perhaps the parameters for the beta distribution need a little more twiddling? Currently, it looks like this: http://i.stack.imgur.com/7hKHT.png If possible, use sage as a reference for your explanations.