photo

Matt J


Last seen: Today 2010 年からアクティブ

Followers: 15   Following: 0

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.

統計

All
MATLAB Answers

288 質問
12,159 回答

File Exchange

37 ファイル

Cody

5 問題
33 解答

Highlights

3 ハイライト

ランク
6
of 299,035

評判
31,718

コントリビューション
288 質問
12,159 回答

回答採用率
78.47%

獲得投票数
4,208

ランク
201 of 20,657

評判
6,674

平均評価
4.90

コントリビューション
37 ファイル

ダウンロード
164

ALL TIME ダウンロード
54973

ランク
9,942
of 163,163

コントリビューション
5 問題
33 解答

スコア
598

バッジ数
7

コントリビューション
0 投稿

コントリビューション
0 パブリック チャネル

平均評価

コントリビューション
3 ハイライト

平均いいねの数
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

バッジを表示

Feeds

回答済み
How to implement N number of realizations of a for loop?
The output below shows that the loop already runs 50 times. Not sure why you think otherwise. % vChGB Sine Hyperbolic Gaussian ...

30分 前 | 0

回答済み
Trying to do an fsolve via an anonymous function
It doesn't look like you need an iterative solver at all. It appears that your rho0() function is just a reinvention of normcdf ...

約22時間 前 | 0

回答済み
Extract certain data from array where repeats are present (but constant values)
Why not as follows, low= find(Y==min(Y),1,'last'); high=find(Y==max(Y),1,'first'); d=d(low:high,:);

1日 前 | 0

| 採用済み

回答済み
Too small vertical bar showing errors and warnings in the Editor
Put the mouse in the editor Window. Hold the Ctrl key and rotate the mouse wheel to restore the zoom to 100%. Then, go into Pre...

2日 前 | 1

| 採用済み

回答済み
Precision lost when combining Int32 integers with single precision numerical numbers
I wasn't there when the decision was made, but I suspect it would be because in Matlab, numeric literals are always double float...

3日 前 | 0

回答済み
Scatter‐plot marker edge color turns black when copying to PowerPoint
If you download export_fig, https://www.mathworks.com/matlabcentral/fileexchange/23629-export_fig?s_tid=srchtitle and if you...

4日 前 | 0

回答済み
Readtable and Readmatrix Ignore Specified Range and Produce Extra Variables
When I save as .xlsx, it seems to work okay, in1 = readtable('2025-03-28_02-07_10-0.xlsx', 'ReadVariableNames', false, 'Range',...

4日 前 | 0

回答済み
Connecting points on opposite end of mask
load('coping_data (1).mat') img=logical(img); n=height(points); f=@(z,n) circshift(z,-n); mod1=@(z) mod(z-1,n) + 1; x...

4日 前 | 0

| 採用済み

回答済み
concatanate arrays upon condition
The way your data is held, as separate enumerated variables, doesn't leave many options. The first thing would be to undo that: ...

4日 前 | 0

| 採用済み

回答済み
Clean and automate indents in scripts an live scripts
Download my editorExtract and editorReplace tools, https://www.mathworks.com/matlabcentral/fileexchange/181000-customized-text-...

5日 前 | 1

| 採用済み

回答済み
appDesigner: How to set tree checkbox names = names of .xlsm files in the directory
Something like this, function startupFcn(app) % Get .xlsm files in the current directory (or specify full path) docFi...

7日 前 | 0

回答済み
estimate camera parameters with fixed translation z value?
Not with estimateCameraParameters. You will have to implement your own constrained routine using lsqcurvefit or lsqnonlin, but y...

7日 前 | 1

回答済み
Finding coordinates of a point from bisector of two lines
M1=P1/2; Q1=norm(M1)*P2/norm(P2);

7日 前 | 1

回答済み
The coefficients of a Hermite polynomial
syms t n = 4; % Degree of the Hermite polynomial H = hermiteH(n, t); % Generate Hermite pol...

11日 前 | 1

回答済み
get validation loss and metric for the best network
You would have to interpolate the validation history data at the best MSE, probably. But keep in mind, the best MSE does not r...

11日 前 | 1

回答済み
background subtraction to detect human
Something like this, perhaps? load data [r1,b1,g1]=imsplit(img1); [r2,b2,g2]=imsplit(img2); mask = imopen( abs(r1-r2)>50 &...

12日 前 | 0

回答済み
Import markup into LiveScript
The best workaround I can find is to make a small mfile and embed the marked-up text in comments, %% % For a given energy |E|...

12日 前 | 0

| 採用済み

回答済み
A question about text string concatenation
Using [] are for concatenating char vectors, but some of your variables are apparently strings. But you can remedy this with str...

12日 前 | 1

送信済み


Customized text modification buttons for the Matlab Editor
A pair of functions enabling simple, programmatic modification of Matlab Editor text. These can be used to make customized butto...

13日 前 | ダウンロード 11 件 |

0.0 / 5

回答済み
Tabular assignment extremely slow
No demo code? Tsk...tsk.. But if I were to guess, it is because you are using brace indexing for row-wise access like in the c...

13日 前 | 0

回答済み
Nonlinear regression of multiple datasets with different functions but wit some shared parameters between datasets
You would probably need to use lsqcurvefit. There is nothing about having multiple data sets, following different functions, tha...

13日 前 | 0

| 採用済み

質問


Import markup into LiveScript
If I have some text with LaTeX and other markup like the following, For a given energy |E|, the *primary*...

13日 前 | 3 件の回答 | 1

3

回答

回答済み
Using regionprops to detect circles in an image
For this, you will need to download, https://www.mathworks.com/matlabcentral/fileexchange/87584-object-oriented-tools-to-fit-pl...

13日 前 | 0

| 採用済み

回答済み
Estimate area under a curve using finite approximations (lower sum with 4 rectangles of equal length)
f= @ (x) x.^2; x1=0; x2=1; n=4; value=0; dx=(x2-x1)/n; % width of rectangle for k=0:n-1 c=x1+k*dx; va...

13日 前 | 1

回答済み
how can I plot inset of a new plot in a few of my subplots (say ha(1) and ha(3))?
I know that I should use axes('Position',[.5 .5 .2 .2]); box on; No, you have to set the Position of the inset axes relative t...

14日 前 | 0

回答済み
downloadTrainedNetwork not found (deep learning toolbox?)
This well get you all the required functions, openExample('images_deeplearning/Segment3DBrainTumorsUsingDeepLearningExample')

15日 前 | 0

| 採用済み

回答済み
Unrecognized field name "constrviolation" in MultiStart when function to fit contains an integral
Well, I think it's a bug. So you should report it. However, I find that it goes away if you don't use PlotFcns, so it's definite...

15日 前 | 0

| 採用済み

回答済み
How to Solve Linear Complementarity Problem (LCP) with MATLAB ?
You could do it with quadprog, but you may as well just deploy it as an optimproblem. n=5; q=-rand(n,1); M=rand(n); M=(M+M')/2;...

15日 前 | 0

| 採用済み

回答済み
how to catch object "button"
You have it already. app.Button is the handle to that button, unless you've renamed it to something different from the text disp...

17日 前 | 1

回答済み
use "set" with trasparent color
It's undocumented, I believe, but you can control line transparency by setting the Color property to a 4-element RGBA value. h=...

18日 前 | 0

| 採用済み

さらに読み込む