photo

Matt J


Last seen: Today Active since 2010

Followers: 16   Following: 0

Message

Professional Interests: medical image processing, optimization algorithms PLEASE NOTE: I do not read email sent through my author page. Please post questions about FEX submissions in their respective Comments section.

Statistics

All
MATLAB Answers

294 Questions
12,318 Answers

File Exchange

38 Files

Cody

5 Problems
33 Solutions

Highlights

3 Highlights

RANK
6
of 300,632

REPUTATION
32,110

CONTRIBUTIONS
294 Questions
12,318 Answers

ANSWER ACCEPTANCE
78.23%

VOTES RECEIVED
4,269

RANK
201 of 21,033

REPUTATION
6,728

AVERAGE RATING
4.90

CONTRIBUTIONS
38 Files

DOWNLOADS
127

ALL TIME DOWNLOADS
55495

RANK
10,442
of 169,890

CONTRIBUTIONS
5 Problems
33 Solutions

SCORE
598

NUMBER OF BADGES
7

CONTRIBUTIONS
0 Posts

CONTRIBUTIONS
0 Public Channels

AVERAGE RATING

CONTRIBUTIONS
3 Highlights

AVERAGE NO. OF LIKES
2

  • Most Accepted 2024
  • Most Accepted 2023
  • Speed Demon
  • Creator
  • Editor's Pick
  • Personal Best Downloads Level 4
  • Community Group Solver
  • Commenter
  • Promoter
  • Leader
  • Solver
  • Most Accepted 2022

View badges

Feeds

Answered
confidence interval from lsqnonlin function while retaining constraints
After solving the original problem, initialguess = [3,25.5013,0.5,-0.8793]; %[n,tau(fs),m,c] options = optimoptions('lsqnonlin...

3 hours ago | 0

Question


Pinning the AxesToolbar (revisited)
The AxesToolbar was introduced about 6 years ago, However, I never embraced it, because it wa...

1 day ago | 0 answers | 2

0

answers

Answered
How can I move the find & replace window or get it to automatically close
If you widen the Editor window sufficiently, the Find and Replace window will move to the right into a blank area where it will ...

2 days ago | 0

| accepted

Question


Mixing subscripts with linear indices
Generally speaking, I have found that it has always been possible to mix subscript and linear array indexing, as long as the ind...

3 days ago | 1 answer | 0

1

answer

Answered
effects of ifft2(x, 'symmetric') while x is not conjugate symmetric
When you specify "symmetric", the upper half of the fft input array is ignored, e.g. x=ones(1,7); ifft(x) x(5:end)=rand(1...

9 days ago | 1

| accepted

Answered
The single function is not behaving as expected
No, it is not a bug. The precision of a number isn't something that is measured only by the digits to the right of the decimal p...

11 days ago | 3

| accepted

Answered
Integer conversion without precision loss for literal function inputs
test 7725400999518902274 function test(a) arguments a (1,:) string end a=eval("uint64("+ a + ")"), end

12 days ago | 1

| accepted

Answered
FFT problem: FFT -> some manipulation -> IFFT results in one-element shift
I think the line where I define my frequency: f= ((-length(fourierNoise)/2):((length(fourierNoise)/2)-1))*fs/length(fourierNois...

13 days ago | 0

Answered
Free boundary of a tetrahedral mesh has interior-crossing edges
OK, my bad. The solid was built from smaller, triangular sub-prisms, each subsequently split into tetrahedrons. While neighborin...

13 days ago | 0

| accepted

Answered
Can we specify or make uigetfile() remember its window position or view mode/sorting?
This file exchange submission seems to do most of the above, https://www.mathworks.com/matlabcentral/fileexchange/10867-uipickf...

14 days ago | 0

Answered
Table with multiple types
I guess I might be missing something. Why isn't this what you want? PType='R'; PData=uint32(391); fig = uifigure; uit = ui...

14 days ago | 0

Answered
How to move data tip in R2025b? (Or, how to restore legacy data tip behavior)
Another option is to supply your own datatip, with an UpdateFcn defined by you: function datatipDemo() % Minimal example that ...

14 days ago | 0

| accepted

Answered
How to move data tip in R2025b? (Or, how to restore legacy data tip behavior)
You can activate the old-style figure toolbar exploration buttons, e.g., addToolbarExplorationButtons(gcf) That seems to have ...

14 days ago | 0

Answered
Error using assignin in a nested m function
Assignin is something you should generally try to avoid. It has many hazards. In this case, where myfunction is nested in mywo...

17 days ago | 1

Question


Migrate R2025a preferences to a new computer that is running R2025b
I am installing R2025b Matlab on a new computer. The new computer has no prior Matlab installations from which previous preferen...

17 days ago | 1 answer | 1

1

answer

Question


As of R2025ab, are all figures now uifigures?
Prior to R2025, the result of the code below was tf=0. Have the figure and uifigure frameworks been unified somehow? Is that why...

18 days ago | 1 answer | 1

1

answer

Answered
Imtile resolution changes with figure height
So Ive noticed when y figure is 1500 x 600, the images look a lot better than when the figure is only 300 high - even though wit...

18 days ago | 0

| accepted

Answered
Where did the zoom icon and other tools go in Release 2025b?
In the version I had installed previously, there was a "zoom" button shaped like a small magnifying glass in a toolbar along wit...

18 days ago | 1

| accepted

Answered
How can I measure the pixel size
If you know the real world distance D (e.g. in millimeters) between two points on the PCB, and if these points are N pixels apar...

18 days ago | 0

| accepted

Answered
Find roll, pitch, and yaw from the same vector in two different coordinate systems
So this is a system of equations with three equations and three unknowns, so there should be sufficient information. No, there ...

19 days ago | 0

Question


Free boundary of a tetrahedral mesh has interior-crossing edges
I have the following tetrahedralized solid, a right prism with a non-convex base, load data %Solid display tetramesh(TET,'F...

19 days ago | 1 answer | 0

1

answer

Answered
Value to differentiate is not traced. It must be a traced real dlarray scalar. Use dlgradient inside a function called by dlfeval to trace the variables.
rawOut = extractdata(rawOut); dY8 = extractdata(dY8); dY18 = extractdata(dY18); If you pre-convert all your input...

20 days ago | 0

Answered
Why the optimization results of lsqnonlin are different in R2026a and R2025a?
There appears to be a new (and buggy) implementation of expm.m in R2026a, resulting in incorrectly complex results for skew sym...

21 days ago | 1

| accepted

Answered
Quick substitution of all multi-objective optimization results (gamultiobj) into optimization expressions
Obviously I can build a loop over ii to get an array Mval, but is there a way to do it more elegantly? Doesn't seem it like it....

24 days ago | 0

Answered
Why is xlim not working?
Calling axis equal triggers an xlim,ylim adjustment. % Set parameters for main circle center = [3,6]; radius = 2; angleStart...

25 days ago | 1

| accepted

Submitted


A class for successive matrix products
A class representing products of matrices, internally storing/manipulating them separately.

25 days ago | 2 downloads |

0.0 / 5

Answered
How to define size of class property depending on a given parameter (including codegen)
With the classdef below, you can set the default size with its defaultSize() static method. This will remain in effect until the...

26 days ago | 1

Answered
"help" does not work
Possibly help.m is calling a function which you have shadowed. You will probably have to use dbstep to track this, or the equiva...

27 days ago | 1

| accepted

Answered
App Designer: How can I use an index to increment a Value field such as editfield1.value, editfield2.value, editfield3.value, etc.?
It would be better to use a uitable for this, or at least to use numeric EditFields instead of textual EditFields. Regardless, ...

27 days ago | 0

| accepted

Answered
how to upscale the dimensions of a matrix to match the dimensions for a second matrix?
Use imresize load Carbon load Rain rainResized = imresize(rain, OutputSize=size(bc_aod)); tiledlayout('h') nexttile im...

27 days ago | 0

| accepted

Load more