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How to permanently undock all future generated figures R2025a
Put the line set(groot, "defaultFigureWindowStyle", "normal"); in your startup.m file.
9 days ago | 1
can not connect to Moble MATLAB
Both MATLAB Online and MATLAB Mobile had downtime earlier today. You can check the current status at the MathWorks status page. ...
12 days ago | 0
matlab online doesn't work
According to the MathWorks status page, there are currently (13:30 UTC, 10 June) issues with starting new sessions on MATLAB Onl...
13 days ago | 2
| accepted
Differences between figure and uifigure (R2025a onward)
According to the Limitations section in the uifigure documentation, one cannot use the print() function on a uifigure.
13 days ago | 0
Any commands about rotation where the unit of the input is radian
I don't think there is a native equivalent of rotx() that uses radian as input. You can convert radians to degrees using the rad...
14 days ago | 0
| accepted
Remove duplicates from array, some first and some last
I believe this does what you want: A = [1 0; 2 0; 3 1; 4 2; 5 3; 6 3; 7 3]; [~, ia_last]...
18 days ago | 1
| accepted
How to reduce the file size of MAT files?
It's not really as simple as "rounding", as the memory requirements are dependent on the data type. But, there are different num...
18 days ago | 0
Cody - "server not available" when submitting solution on prime numbers question
That error does not mean your solution was not fast enough. (As I recall, there is a separate message telling you if you solutio...
19 days ago | 1
How can I use table() with a variable number of columns?
I assume that data, colName, and rowName are consistently dimensioned. slice = squeeze(data(jj,:,:)); TT{jj} = array2table( sl...
19 days ago | 1
problem to use compose
It's because your values are actually 0.7937 * 1.e-5. Try .. load('matlab_bb.mat') bbb=char(compose("%% %9.9f",bb));
24 days ago | 1
| accepted
My students could not open an account in Matlab Online
MathWorks has been undergoing a ransomware attack for over a week. You can see updates at their status page. I know MATLAB Onli...
24 days ago | 0
"No Healthy Upstream" when trying to get to Mathworks Licensing Manager
MathWorks has been experiencing a ransomware attack. You can see the status updates at https://status.mathworks.com/
26 days ago | 0
| accepted
Transfer history to MATLAB 2025a
I did not know the answer to your question, so I decided to as in the AI Chat Playground. Here is what it came up with. In MATL...
1 month ago | 0
Would kfold loss values vary if cross validation is performed after model training?
The predictions will be identical, as long as you use the same fold assignments: % Set seed, for reproducibility rng default ...
1 month ago | 0
| accepted
How to create a pdf from the histogram
You can use the histogram function to create and plot a histogram. You can use the ksdensity function to estimate a non-paramet...
2 months ago | 1
| accepted
More unexpected behavior multiplying an array with a double
Using the simpler example that @Stephen23, posted S(1).x = pi; S(2).x = sqrt(2); S.x Note that S.x is not a double array. ...
2 months ago | 1
| accepted
How does one obtain the covariance matrix for the fixed effects from fitting a mixed effect model using fitlme or fitlmematrix?
A LinearMixedModel object lme has a CoefficientCovariance property, which you can obtain with lme.CoefficientCovariance This i...
2 months ago | 0
| accepted
Hyperparameter optimization fitrnet not working
Per the documentation for fitrnet ... "You can use an array ResponseVarName to specify multiple response variables. (since R202...
2 months ago | 0
| accepted
Shapley based feature selection
The Shapley values don't require the class labels (i.e. the actual responses) to determine feature importance. The Shapley valu...
4 months ago | 1
| accepted
Solved
Project Euler: Problem 4, Palindromic numbers
A palindromic number reads the same both ways. The largest palindrome made from the product of two 2-digit numbers is 9009 = 91 ...
4 months ago
Solved
Project Euler: Problem 3, Largest prime factor
The prime factors of 13195 are 5, 7, 13 and 29. What is the largest prime factor of the number being input, input might be ui...
4 months ago
Solved
Solve a System of Linear Equations
Example: If a system of linear equations in x₁ and x₂ is: 2x₁ + x₂ = 2 x₁ - 4 x₂ = 3 Then the coefficient matrix (A) is: 2 ...
4 months ago
Solved
Verify Law of Large Numbers
If a large number of fair N-sided dice are rolled, the average of the simulated rolls is likely to be close to the mean of 1,2,....
4 months ago
Solved
Word Counting and Indexing
You are given a list of strings, each being a list of words divided by spaces. Break the strings into words, then return a maste...
4 months ago
Solved
Magic is simple (for beginners)
Determine for a magic square of order n, the magic sum m. For example m=15 for a magic square of order 3.
4 months ago
Solved
Rotate Matrix @180 degree
Rotate Matrix @180 degree Example A=[8 1 6; 3 5 7; 4 9 2], then answer would be [2 9 4;...
4 months ago
Solved
Square root
Given x (a matrix), give back another matrix, where all the elements are the square roots of x's elements.
4 months ago
Solved
Calculate the average value of the elements in the array
Calculate the average value of the elements in the array
4 months ago
