Question

lsqcurvefit does not fit correctly to my data
Dear all, I want to fit a nonlinear function to my data, and here is the code I have so far: FitFunc = @(x,xdata) x(...

11 years ago | 1 answer | 0

Question

Different results from radial averaging and averaging along x axis of fft2
I have an image(which is a height profile), and I apply 2D fft (fft2) on the data. Then I compute 2D power spectrum: win=...

11 years ago | 1 answer | 0

Answered
FFT2 frequency of each pixel in a 2D Fourier transformed image
Hi, I can partly answer your question. I also have problem with this DC component for my height image, I removed the mean fro...

11 years ago | 2

| accepted

Answered
Fit a piece-wise linear function to data: fitting 2 lines to data and finding their corresponding parameters
Thank you so much for your answers, I'm now using Teja's code, I didn't exactly get what you did in this part : min(B(1),B(2)+B(...

11 years ago | 0

Question

Fit a piece-wise linear function to data: fitting 2 lines to data and finding their corresponding parameters
I have a data series which I know it consists of two parts: two linear sections, the first line is a zero gradient line (y=cte) ...

11 years ago | 3 answers | 0