Answered
How can I use table() with a variable number of columns?
Something like this seems to work -- data = randn(2,5,4); jj = 1; T{jj} = array2table(squeeze(data(jj,:,1:3)), VariableName...

9 months ago | 0

| accepted

Answered
Splitting two nearly overlapping curves
It might be possible, however it would likely require a lot of manual experimentation. I experimented with an approach that i...

9 months ago | 1

| accepted

Answered
Can't use MATLAB on fedora 42
MathWorks is having problems (and has been since 19 May). See the Status page for details. It's mostly backup here in the U....

9 months ago | 0

Answered
Can't Watch Tutorial Videos from Mathworks Website.
It's not your browser. See the Status page for an explanation.

9 months ago | 0

| accepted

Answered
Need a tangent line in my plot like the example provided but I cannot seem to do it
Calculate the numerical derivative, find its value at the desired point on the curve, and calculate the tangent line parameters....

9 months ago | 0

Answered
i can't download matlab in my computer
See the Status page for details. MathWorks is gradually returning to full capacity. It is essentially 'up' in the U.S., howe...

10 months ago | 1

Answered
Spatial, coloured vectors
The quiver3Dpatch File Exchange contribution can probably do what you want. You will need to use the usual quiver3 argument for...

10 months ago | 1

| accepted

Answered
when installing an add on
You have to create the directory using sudo mkdir. I believe that is all that is required. After that, the installatiion shoul...

10 months ago | 0

Answered
Unable to run Matlab r2017a after installation, not desktop shortcut found even in "all apps" section under settings
There could be operating system incompatibilities. See: Previous Releases: System Requirements and Supported Compilers I...

10 months ago | 0

Answered
Cannot create or open .m files in Matlab UI.
I doubt any of us on Answers will be able to help you with this. Did your Linux distro update without your knowledge? Do you...

10 months ago | 0

Answered
Create a 2D plot with irregular axes
The plot function does not care if the data are not regularly sampled. It wil plot them appropriately regardless. Example — ...

10 months ago | 0

Answered
Remove outliers but be careful with end points
The rmoutliers function does not know that the end points are outliers because it has nothing after them to compare with beyond ...

10 months ago | 0

| accepted

Answered
Extracting data from Fourier spectrum
There are File Exchange contributions that could help you with this: Mueller-Stokes-Jones Calculus and Light Polarization.

10 months ago | 1

| accepted

Answered
given the function f(x)=X^3 - 6X^2+9X. Find the first derivative of the function of f(x)
Use the polyder function — f = @(x) x.^3 - 6*x.^2 + 9*x; % Anonymouus Function p = [1 6 3 0] ...

10 months ago | 0

Answered
How can I change timetable to timeseries?
According to the timeseries documentation, it wants the data values as the first argument, and the time values as the second arg...

10 months ago | 0

| accepted

Answered
How to expand a matrix and interpolate between values?
This is frustrating. The seconds function should automatically convert the hours to seconds and change the unit as well. T...

10 months ago | 1

Answered
closed countour around a given point
This will detect and plot all the closed contours (in addition to a second one at level 12 that does not actually meet the close...

10 months ago | 0

| accepted

Answered
Legend not working in 2024 as it did in Version 6.1.
Ii cannot get the code to run here. Change the legend call to: legend([hw,hmedw(1),hmeanw(1)], 'Weight','Median','Mean', 'L...

10 months ago | 0

Answered
Cell array Filtering when using readlines
Try something like this — % data = % 884×1 cell array data = { ... {[" 190 190.03 190.06 190.09 190.12 ...

10 months ago | 1

Answered
I'm having trouble understanding the frequency normalization of the fir1 function regarding how the units match up.
1) The 0 to pi range represents the normalised radian representation of the Nyquist frequency, half the sampling frequency. The...

10 months ago | 0

Answered
Full-wave rectified sine wave with gaps
One approach — Fs = 1000; L = 1; t = linspace(0, Fs*L, Fs*L+1).'/Fs; s = abs(sin(2*pi*t)); idx8 = numel(s) / 8; t8 = ...

11 months ago | 0

Answered
Combining Similar Time Arrays into a Single Updated Time Array
There are some core MATTLAB approaches for this, depending on the result you want. You would have to convert them to timetabl...

11 months ago | 0

Answered
How we can do sub-plot in one graph ?
With respect to adding element-wise operatioons to your code, use the vectorize function. The note says ‘(Not recommended)’ how...

11 months ago | 1

| accepted

Answered
Breaking legend into several parts and moving parts as necessary to prevent overlapping graphed data.
I doubt that it is possible to break up the legend or have more than one legend in an axes object. There are a few options yo...

11 months ago | 1

Answered
Unable to install Add-on in Ubuntu 22.04
I am not certain what the problem may be, however the problems I encountered with MATLAB updates were due to the update installe...

11 months ago | 0

Answered
How do I export data to a file?
If the data are in a matrix that are assigned to one or more variables, first use the save function to save t he variables to a ...

11 months ago | 0

| accepted

Answered
installling matlab 2023b in unbuntu 24.04
MATLAB R2023a does not suport Ubuntu 24.04. It does support Ubuntu 22.04 and some earlier releases. Check the Platform Roadm...

11 months ago | 0

Answered
I'm new to matlab i want to estimate kinetic parameter from experimental data.
If you have defined your own objective function, one option is: Parameter Estimation for a System of Differential Equations. ...

11 months ago | 0

Answered
I am running Ubuntu 24.04 and can not intall any matlab before version R2024b
According to the System Requirments for R2023a, the latest Ubuntu release it supports is 22.04. Only MATLAB R2024a and R2024b s...

11 months ago | 0

Answered
Problems encountered when using sph2cart
Your data do not vary much. Also, what are the uints for ‘angle_phi_theta’ ? They appear to be more like degrees than radians ...

11 months ago | 0

| accepted