Linked Questions

61 votes
4 answers

How to create expanding summary boxes like the ones displayed for InterpolatingFunction, NearestFunction, etc.?

The display forms for objects like ClassifierFunction are nice clickable summary boxes I like this, and now I'm trying to create my a custom version of this for my ...
M.R.'s user avatar
  • 31.5k
23 votes
4 answers

Getting the interpolation function from a list plot

I have conducted a chemistry experiment and obtained a list of concentrations of a reactant against time. I plot a graph of this using Mathematica's ListPlot ...
Thomas Russell's user avatar
18 votes
3 answers

2D smoothing spline interpolation

Does Mathematica have 2D smoothing spline interpolation built in? I requires an interpolation method with smooth first derivatives and cubic bivariate splines fulfill this nicely. In python I would ...
Ajasja's user avatar
  • 13.7k
14 votes
2 answers

Fit a function to data so that fit is always equal or less than the data

I have a set of measurement data and I try to fit there a function (a Exp[b x] + c Exp[d x] - o). I have two problems: The fit function does not converge nor after ...
Lutscher's user avatar
  • 143
6 votes
2 answers

Inflection point coordinates of peaks in data

Using the following data, which I have used before in other posts (the y-axis is heat flow (mW) and x-axis is Temperature in °C (not time)): ...
John's user avatar
  • 1,621
2 votes
2 answers

Best parameter for smoothing splines

I am trying to implement a module to determine the best value for the smoothing parameter of a smoothing spline interpolation of a given dataset. To calculate the cross-validation score of a given ...
Daniele Binosi's user avatar
2 votes
2 answers

Interpolating noisy data

My data looks like this: Or if displayed in log chart: I want to create an interpolation of the data that would remove most of the noise. What are some good ways to ...
Arsen Zahray's user avatar
8 votes
1 answer

Produce a spline from a set of {{x, y}, z} points and get its parameters/expression

I have produced a set of points in a variable of the type {{x1, y1}, z1},{{x2, y2}, z2}, ,... }, where {x, y} should be the ...
user14679's user avatar
5 votes
1 answer

How do I make those nice summary boxes like Dispatch and SparseArray do? [duplicate]

Dispatch and SparseArray have nice output forms that summarise their contents: The contents even manage to be retained fully on ...
Patrick Stevens's user avatar
2 votes
1 answer

Interpolation not working

This is probably a very silly question but I am trying to use Interpolation for the following data: ...
John's user avatar
  • 1,621
0 votes
1 answer

Find interpolation with derivatives at some points

I am trying to find out how to find a good interpolation of a periodic function I have from some data points. The only problem is that I need to make sure that derivatives at the starting and ending ...
senseiwa's user avatar
  • 515
5 votes
0 answers

Improving speed performance of 'Fit' with BSplines?

Context In the context of this (vaguely controversial) question, I am stumbling into a performance issue with Fit. Let me illustrate on fitting a set of ...
chris's user avatar
  • 23k