Statistics
RANK
217
of 242.558
REPUTATION
342
CONTRIBUTIONS
6 Questions
170 Answers
ANSWER ACCEPTANCE
66.67%
VOTES RECEIVED
52
RANK
1.359 of 16.999
REPUTATION
1.240
AVERAGE RATING
3.20
CONTRIBUTIONS
3 Files
DOWNLOADS
7
ALL TIME DOWNLOADS
12314
CONTRIBUTIONS
0 Posts
CONTRIBUTIONS
0 Public Channels
AVERAGE RATING
CONTRIBUTIONS
0 Highlights
AVERAGE NO. OF LIKES
Contribute at least one answer each month for 3 consecutive months
Awarded to William Rose on 02 May 2021
Answer 3 questions that were unanswered for more than 30 days
Awarded to William Rose on 08 Apr 2021
20 of your answers have been accepted
Awarded to William Rose on 06 Apr 2021
Your submissions were downloaded 10 or more times in a month
Awarded to William Rose on 01 Nov 2019
Publish your first review
Awarded to William Rose on 09 Oct 2019
Your submissions received 1 five star rating
Awarded to William Rose on 09 Oct 2019
Publish your first submission
Awarded to William Rose on 09 Oct 2019
Accept 1 answer given by other contributors
Awarded to William Rose on 30 Jul 2017
Provide your first answer ever to someone else's question
Awarded to William Rose on 20 Jul 2017
Content Feed
Curve fitting and convergence to estimate two coefficients
@Anand Rathnam, I was bothered by the poor performance of fmincon() on this problem. Even when we tried starting at multiple lo...
5 días ago | 0
| accepted
Curve fitting and convergence to estimate two coefficients
@Anand Rathnam, I also wrote the attached script: myModelTest.m. This script calls test myModel to make sure it gives reasonab...
5 días ago | 0
Curve fitting and convergence to estimate two coefficients
Here is fitDataPolyStart.m.
5 días ago | 0
Curve fitting and convergence to estimate two coefficients
@Anand Rathnam, Here is a new main program fitDataPolyStart.m, that tries multiple starting points, to reduce the chance of fin...
6 días ago | 0
Curve fitting and convergence to estimate two coefficients
@Anand Rathnam, Your code was a very good start. There were two fatal errors. ONe is that when you call fmincon(), you must pa...
6 días ago | 0
Curve fitting and convergence to estimate two coefficients
@Anand Rathnam, fmincon() is a multidimensional minimization routine. By multidimensional I mean it adjusts multiple unknown p...
7 días ago | 0
Given the matrix 𝐴, use MATLAB to compute 𝐴𝐴 𝑡 .
@yihan wang, For a real matrix, A' is Matlab code for the transpose of A. Therefore: A=[6,-2,-1,0;3,-5,0,-3;10,5,0,-1;-1,3,4,1...
7 días ago | 0
How can I obtain 20 frames of noise?
@Rahul Shah, do your frames have one or two dimensions? I will assume you mean 2D frames. Let's assume each frame is 32x32. The...
7 días ago | 0
| accepted
How to best modify FFT bin amplitudes before IFFT (DFT, windowing)?
@Pythagorean, You say "For FFT. I understand that the first half of the resulting frequency bins are the bins with the relevant...
7 días ago | 1
| accepted
ODE Classes: Numerical Integration
@kileigh palmer, This site https://www.mathworks.com/help/matlab/math/summary-of-ode-options.html says the Jacobian option is ...
9 días ago | 0
calculate summation of vectors
@Kha Le, This sounds a lot like a homework question. Hints: Break it into two parts: the sum of the unsquared terms plus the su...
9 días ago | 0
| accepted
Plz help how can i do this
@eman baky, Your quesiton is not eassy to read bcause you have formatted parts of your question as code that should not be. I ...
9 días ago | 0
Hi everyone, i want to ask about curve fitting problem,
@laurensius adhitya, One set of four numbers (a,b,c,d) is not enough to determin the four unknowns (k1,k2,k3,k4). You need fou...
9 días ago | 0
Specify Bounds Vpasolve Two Unknowns
@John, I would use simple geometry. You say "Coordinates of the centre of the circle (y,z) should be within the bounds 12.5 and...
9 días ago | 0
| accepted
Z-angle of a fit-plane having 4 points
@Gaetano Pavone, In my previous post, I supplied a script (fitPlane3a.m) that finds the plane that is the best fit to 4 or more...
16 días ago | 0
Z-angle of a fit-plane having 4 points
@Gaetano Pavone Here's a script (attached) that fits a plane to 4 or more points. It fits by ordinary least squares, which mea...
17 días ago | 0
Z-angle of a fit-plane having 4 points
@Gaetano Pavone, YOu also requested help for how to plot the plane, the points, the normal vector. See attached. This is for th...
17 días ago | 1
Z-angle of a fit-plane having 4 points
@Gaetano Pavone, Here is code to find the unit normal to a plane defined by three points, and then the angle with the z-axis.. ...
18 días ago | 1
| accepted
Using gausswin function and iFT'ing data
@Cheggers, you are correct, you can use the same variable name for an input to the function and for an output from the function....
18 días ago | 0
Intersection between two functions
@Behbod Izadi, syms x S=solve(2.2/sqrt(2*9.81*x) == tanh((3.5/(2*4.5))*sqrt(2*9.81*x)),x) gives an answer. Is it reasonable? ...
18 días ago | 0
Filter recurring oscillation in 2D Data
@DGM, @Konvictus177, I cannot see diagonal banding. The arrows added to th image point to a vertical line, not a diagnonal feat...
18 días ago | 0
Using gausswin function and iFT'ing data
@Cheggers OK, I am glad if my earlier comment served as an answer to your probelem. I still think function windowFID() has a p...
18 días ago | 0
How to fill a matrix with formulas
@aziz monavar, I see from your comment that you want the transpose. Therefore do this: y=zeros(1,20); y(1)=0.4; for i=2:20, ...
18 días ago | 1
Z-angle of a fit-plane having 4 points
@Gaetano Pavone, Is each data point a set of 3 coordinates? If the answer is yes, then do you know the x and y values exactly?...
18 días ago | 0
How to fill a matrix with formulas
@aziz monavar, You have a matrix y(i,j) but your formula is only for y(i). That is the problem @John D'Errico identifies. If y...
19 días ago | 0
Spline interpolation for angular data
@mukesh bisht, I suspect my earlier proposal won't work as I suggested, because the x-values passed to spline() must be unique....
alrededor de 1 mes ago | 0
Spline interpolation for angular data
@mukesh bisht, The shape of the fitted spline at each point depends on points before and after that point. The curves do mot m...
alrededor de 1 mes ago | 0
Relationship between 2 poly curve/ 2 data sets , how can I correlate it ?
@Eric Aw, Here is an implentation of my previous suggesitons. The attached code produces the console output and the plot below....
alrededor de 1 mes ago | 0
| accepted
Relationship between 2 poly curve/ 2 data sets , how can I correlate it ?
@Eric Aw, See my quesitons in the ealrier comments. I moved your data into a text file (attached) and made a few tweaks to you...
alrededor de 1 mes ago | 0
