Linked Questions

27 votes
4 answers
7k views

Savitzky-Golay Filter to smooth noisy data

I do have noisy data and want to smooth them by a Savitzky-Golay filter because I want to keep the magnitude of the signal. a) Is there a ready-to-use Filter available for that? b) what are ...
Shukoff's user avatar
  • 599
12 votes
3 answers
1k views

Interpolate the noisy data

I have some noisy data ...
Saesun Kim's user avatar
  • 1,810
20 votes
2 answers
774 views

Adding Regularisation to Built-in Interpolation Function

tl;tr; How to improve performance of regularised Interpolation? Context Since Version 12, Mathematica now incorporates a range of (underrated IMHO) regularisation ...
chris's user avatar
  • 23k
3 votes
4 answers
605 views

Best way to smooth, interpolate and differentiate over a list of data

I have a list given by: ...
Indeterminate's user avatar
2 votes
1 answer
1k views

How to perform a robust nonlinear regression in Mathematica?

I have a list of data containing emissions: {{0, 0}, {1, 1}, {2, 4}, {3, 9}, {4, 16}, {5, 25}, {6, 36}, {7, 49}, {8, 5}, {9, 81}, {10, 100}} If I make a fit of ...
Color bit's user avatar
1 vote
2 answers
825 views

How to fit different parts of a log-log plot

I have data of a function that goes like $f(x)\propto x ^\alpha $ for a certain range of $x$ and like $f(x)\propto x^\beta$ for another one. It is common in the literature to make a log log plot and ...
P. C. Spaniel's user avatar
0 votes
3 answers
286 views

Smoothing random data with MovingAverage

If I have this kind of data: ...
lio's user avatar
  • 2,396
2 votes
1 answer
172 views

Fitting data and finding area under curve

If I have the following data: ...
John's user avatar
  • 1,611
1 vote
1 answer
198 views

Interpolating 3D noisy data

I have some noisy 3D data that looks like this: ...
user avatar
0 votes
1 answer
90 views

Factor to measure polynomial fit

I am trying to use InterpolatingPolynomial to fit a polynomial to a given set of points representing a relationship between two variables. I would like to find a ...
Bran's user avatar
  • 275