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Cris LaPierre

MathWorks

Last seen: 1 day ago |  Active since 2018

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Answered
How can I use a previous version of Matlab ? I using Matlab 2022b and I would like to run some script in a previous version 2021a. Thanks
You need to install each version you want to run. Visit the downloads page and use the dropdown menu to select the version you...

4 days ago | 0

Answered
Having issues installing Imaging Processing Toolbox
See this answer: https://www.mathworks.com/matlabcentral/answers/2111706-r2024a-cannot-install-signal-processing-toolbox?s_tid=s...

5 days ago | 0

Answered
How to combine panes, or how to redock an undocked file in main editor pane
In your undocked editor window, switch to the View tab and in the Tiles section, select Single

5 days ago | 0

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Answered
Artifacts appear on my matlab image
We'd have to see your code for 3 colors to say for certain, but here, your colormap sets anything above or below abs(1) to [0 0 ...

5 days ago | 0

Answered
Reading data from Microsoft Excel
Note that xlsread is not recommended. Assuming you are just importing a matrix of numbers, I would use readmatrix. A = readmatr...

6 days ago | 0

Answered
Maybe a mistake in the documentation of function ''robgain''
To provide feedback directly to MathWorks, please Contct Support: https://www.mathworks.com/support/contact_us.html

7 days ago | 0

Answered
Matlab creates netcdf file but can't open it later(ERROR: The NetCDF library encountered an error during execution of 'open' function - 'Unknown file format (NC_ENOTNC)'
Please contact support: https://www.mathworks.com/support/contact_us.html

8 days ago | 0

Answered
How i get a graph that i attached here with this matlab code?
Right now, you just plot the same line 4 times: plot(t,u) Changing the value of phi will not change the value of u. You must re...

9 days ago | 0

Answered
Can't see Class or MATLAB Grader Reports on grader.mathworks.com
Reports for an LMS integrated problem are only visible in the LMS, and only for individual problems, not an assignment. They are...

10 days ago | 0

Answered
Optimization Live Editor task Error "Your objective function must return a scalar value"
I believe the issue is related to your initial point. If your dimensions are 1x2, then your initial point should be 1x2 as well....

11 days ago | 1

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Answered
Ask for help, my training-progress can 't show, can anyone help solve it ?
If it worked before, please try restarting MATLAB. If it still doesn't work, try restarting your computer. If it still does not...

11 days ago | 0

Answered
Answer to Moving Windows section of the "Calculations with Vectors and Matrices" online course is identical to solution but marked wrong. How to get credit?
First, I will admit this is a bug that needs to be fixed. I'll report it to the appropriate team. If you look closely, you will...

13 days ago | 2

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Answered
Clave de activación de Matlab Simulink para estudiantes
Por favor, contactar el administrador de su licencia. Quizas esta pagina te servira: https://www.mathworks.com/academia/student...

14 days ago | 0

Answered
solution for steady flow at Re = 10. in coursera i took mathematics for engineers.for that i need to solve an assignment. For this code i cant get correct stream & vorticity
Assuming this exercise is coming from Week 2 of Mathematics for Engineers: The Capstone Course, I can't duplicate the error. I'd...

16 days ago | 0

Answered
how to mirror plots?
I'm not aware of a function for this, but it can be achieved with logical indexing and some math. data1GHH=readtable('1GHzHH.xl...

18 days ago | 0

Answered
Matlab Grader & LMS Viewing Student Solutions
LTI 1.3 integrations of MATLAB Grader into LMS platforms now allow LMS administrators to enable the tool to display learner name...

19 days ago | 1

Answered
Correspondence between student name and Learner ID in Matlab Grader and Moodle
LTI 1.3 integrations of MATLAB Grader into LMS platforms now allow LMS administrators to enable the tool to display learner name...

19 days ago | 0

Answered
How can I export .mat file to .xls file?
I'd recommend using writematrix (homogenous data) or writetable (for table data type) after first loading the mat file variable ...

20 days ago | 0

Answered
Showing the error "Variable nDimes has an incorrect value"
Inspect the criteria you are using to determine nDimes. Your code finds 11 dimes in each image, which is incorrect.

23 days ago | 0

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Answered
I am having trouble understanding this error "To assign to or create a variable in a table, the number of rows must match the height of the table.", can someone explain?
Values_tbl_new has n+1 rows because you vertically concatenate the first row of units_tbl to values_tbl. You then try to assign...

25 days ago | 0

Answered
See also ... blocks viewing of answer
Use the scroll bar under the image to view the rest of the image.

26 days ago | 0

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Answered
Simscape version change cause problem
Please contact support. https://www.mathworks.com/support/contact_us.html

30 days ago | 0

Answered
Datetime format capatilization sensitivity inconsistent?
It is case-sensitive in both contexts. Either way, you get a result with 3 decimal places, but notice that the result is just a ...

30 days ago | 0

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Answered
How do I pull data from multiple excel spreadsheets located in the same folder?
I would use a fileDatastore to load all the data into a single variable. You can see an example of how to use one to do this in ...

1 month ago | 1

Answered
A MATLAB license for an individual researcher
A community forum can certainly offer some observations, but I would suggest contacting sales to get accurate answers. https://...

1 month ago | 1

Answered
stl to grid error
Your files are not the same size. How were they created? terrain.STL is 6.2 MB (127508 faces, 382524 vertices) untitled.stl is...

1 month ago | 0

Answered
I have a txt file which has data in netcdf format. How to read it?
The link you shared gives an error, but using the information in the url, I was able to locate the file GPM IMERG Final Precipi...

1 month ago | 3

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Answered
Questions about the input X of pcolor and contourf.
See this example: Specify parametric grid [X,Y] = meshgrid(-3:6/17:3) XX = 2*X.*Y YY = X.^2 - Y.^2 colorscale = [1:18; 18:-1...

1 month ago | 0

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Answered
After completing Matlab onramp my progress bar keeps changing back to 87% with some modules saying they aren't completed after recieving a certificate with 100% completion.
Please contact support: https://www.mathworks.com/support/contact_us.html

1 month ago | 0

Answered
how to align two columns with different times
Your timestamps are using different scales. You can see this by fitting a line to the series by plotting timestamp 1 against tim...

1 month ago | 0

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