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[TS 3227] ListInterpolation
Hi, I'm using ListInterpolation to get functions that smoothly describe my data. So the resulting plots are smooth lines that transverse my noisy data. When I try to plot the derivative of this functions, I get very sharp zig-zags (that I could also get deriving numerically my data). Mathematica is making an interpolation between my points, and since my points are noisy distributed, y also get the noise in the derivative. That's ok, but why do I get smooth plots that cross my data, say, at a "mean noise value". I cannot use NonLinearFit because the functions I need should be case sensitive and I have a large number of data sets, so choosing a fitting function every time could be extremely tedious. I'm sure there's a way out of this, if someone could help me, I'd appreciate any help. Thanks!