Community Profile

photo

Jon


Last seen: Today |  Active since 2013

Statistics

  • Guiding Light
  • 6 Month Streak
  • Knowledgeable Level 5
  • Revival Level 1
  • First Review
  • Thankful Level 3
  • First Answer

View badges

Content Feed

View by

Answered
Combine 3 fig. graphs in one plot to compare each other
You should run each of the simulations keeping the results in local variables stored in the base workspace, and then plot the da...

7 days ago | 0

Answered
Plotting 2 scripts on 1 graph
The results of running scripts are saved in the local workspace. So lets say that inside of script one you calcualate values of...

8 days ago | 0

Answered
FMINCON - Include constraints provided by the objective function
You can use nested functions to avoid recomputing your constraint values. This topic is covered in the following documentation...

8 days ago | 1

Answered
How to get array user input in 1 dialog box
If I am understanding what you would like to do I think this might work. % Use single dialog box to collect all information, u...

10 days ago | 0

| accepted

Answered
Does anyone know which Simulink Block this is?
Right click on the block in question. This will bring up a context menu. Select "help" from the bottom of this menu. This will t...

1 month ago | 0

Answered
Toggle between temperature units for unit conversion
I think this does what you want. I have fixed a few errors in your original code, I think you were confused about the value of ...

1 month ago | 0

Answered
How to run a model in simulink several times like a flowchart
You can use the MATLAB sim command to run Simulink programatically in a loop, please see https://www.mathworks.com/help/simulin...

2 months ago | 0

Answered
Create folders and organize data based on file name.
You should be able to select the ones you want using dir and wildcards so for example list = dir('*CP-B-01*.txt')

2 months ago | 0

Answered
Search for text in all .m files of a folder?
Use the "Find Files" function on the home tab of MATLAB main window

3 months ago | 0

| accepted

Answered
Minimizing a function using fmincon with special constraints and intervals
Here is one approach % function to be minimized fun = @(x)x(1)^2 + 3*x(2)/x(3) - x(4)^2 ; %initial value x0=ones(1,4); %...

3 months ago | 1

| accepted

Answered
Get shortest paths and distances among nodes without loop for (and possibly in a faster way)
for the distances (shortest path) between every pair of nodes in the graph d = distances(G) and for some subset, in your case ...

3 months ago | 1

Answered
Matlab - Class : how to declare an internal function returning a value
You must tell MATLAB that findScenarioNumber is a member function of the class you are currently in scenarioNumber = obj.findSc...

3 months ago | 0

| accepted

Answered
any idea how i can compute the elapsed time in each iteration in for loop ?
Use tic and toc

3 months ago | 0

Answered
Reading a specific file based on the input the user enters
You could do something like this % prompt user for test series number seriesNo = inputdlg('Please enter the test series number...

4 months ago | 0

Answered
Midpoint between 2 numbers in 2 columns in the same csv file
% read in the data dat1 = readmatrix("File1.csv"); dat2 = readmatrix("File2.csv"); % assume first column matches, and compu...

4 months ago | 0

| accepted

Answered
How can i plot this: x(t) = |t| * rect((t - 1)/3)
As far as I know, rect is not a MATLAB function. Perhaps it is one you defined and saved in an m file. Assuming this is the case...

4 months ago | 0

Answered
Importing Excel Database Into MATLAB
I just ran T = readtable('dataset2.xlsx') and it seems to import without any problems

4 months ago | 0

Answered
Find the value which is repeated in each row of a matrix (without loop for)
Here's another way % Input A = [ 523 2920 523 1227 8003 8343 5611 8343 ...

4 months ago | 1

Answered
How to discover the neighbor nodes in an matrix?
Here is a little example that I think does what you are asking % % assign threshold for being a neighbor dMax = 0.6; % mak...

4 months ago | 0

Answered
Finding a variable in a large table
Here's a simple example, which I think you could extend to your situation % make an example table name = {'fish','cat','dog','...

4 months ago | 0

Answered
How to build a function to make a working code more flexible?
The first thing you should do to greatly simplify your code and make it more flexible is to avoid using variable names with nume...

4 months ago | 0

| accepted

Answered
Matlab doesn run the program , says at the editor 'input argument might be unused ' for t
If you have your odefun stored in it's own .m file then the syntax for calling ode45 is just [t,x]=ode45(@odefun,tspan,x0); F...

4 months ago | 0

Answered
I am trying to model solutions to a harmonic oscillator in physics using matlab and get "Array indices must be positive integers or logical values"."
The indices you are using in the expression x_array(t/dt+1) etc are not integers. MATLAB indexes arrays using either integer or...

4 months ago | 0

Answered
Two functions having the same name but one being capital?
While MATLAB is case sensitive, Windows (assuming that is your operating system) is not. Since MATLAB requires that function nam...

4 months ago | 0

| accepted

Answered
Help to plot a frequency response of a function
Here is a basic approach (not using any toolbox functions for frequency response), that might give you some ideas of how this ca...

4 months ago | 1

| accepted

Answered
why the coefficient of case 2 is 2 columns, not 5 columns? (about coefficient value of PCA)
By default pca gives the 'economy' option which only includes significant components. for pca(X) with X n by p using 'economy' ...

4 months ago | 1

| accepted

Answered
How can I generate a pseudo random column vector V
Yes this will make a random column vector of length N at each iteration. The values will be uniformly distributed between 0 and...

4 months ago | 0

Answered
Can someone help me open a Simulink file from an old version of matlab? (probably around year 2000)
I am able to open old Simulink .mdl files from around 1999-2000 using my MATLAB Simulink R2022b without taking any specific acti...

4 months ago | 0

Answered
Saving the timestamp for each iteration in an array
You had numerous errors in your code. A key one is that you were writing the sensor data and time to the same column (B1). Since...

4 months ago | 0

Answered
How to get z transfer function from difference equation?
I don't think there is any direct way to convert a difference equation to a transfer function in MATLAB. Maybe it is possible wi...

4 months ago | 1

Load more