Cris LaPierre
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Contribute at least one answer each month for 24 consecutive months
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Content Feed
How can another person use my student licence?
No. That violates the license terms.
33 minutos ago | 0
How to use fscatter3
fscatter3 is not a MathWorks-created function. It is available on the File Exchange. From the help for this function, it appear...
38 minutos ago | 0
why do i recive Index in position 2 is invalid. Array indices must be positive integers or logical values
This error means that you are not using integer values to index your array. Position 2 indicates it is your column index that is...
43 minutos ago | 0
Problem: fit function change the size of my "x" data-array.
It appears the fit first performs a 'sanity check' of the input function using 7 values. If that passes, it then actually runs t...
alrededor de 18 horas ago | 0
| accepted
How to textscan dates and data delimited with spaces?
Assuming your data is numeric, I would do this. data = [2010 12 31 23 50 198 8.2 999 99.0 9999; 2011 01 01 00 00 199 8.1...
alrededor de 21 horas ago | 2
How is delta from the polyval function calculated
Rather than recreate a MATLAB function in Python, why not just call MATLAB from inside Python? https://www.mathworks.com/help/m...
alrededor de 23 horas ago | 0
For TMW staff: Matlab Home/Cloud drive connector/macOS Mojave
You can see the system requirements here. For R2021b it says macOS Mojave (10.14) is no longer supported
1 día ago | 0
How can I solve this issue : "Products require a supported compiler"?
No issue unless you want to create standalone applications. If you do but don't have a preferred compiler, you can install MinGW...
1 día ago | 0
| accepted
why is my vector empty
I'm not sure what you want wordarray to be. However, it's empty because you are using the colon operate and, since all ascii cod...
3 días ago | 1
MatLab on iPad Air 2021
See this answer. https://www.mathworks.com/matlabcentral/answers/355038-difference-betwen-matlab-for-ipad-pro-and-matlab-for-wi...
3 días ago | 0
How to normalize a matrix in such a wat that every row sum of X(:,:,i) should be 1 except for ith row
Why not just create a row vector of random numbers, and insert it into a matrix of ones? X = ones(sz1,...,szN)
3 días ago | 0
I want to create a variable that averages the data over one minute from a larger set of data
Not exactly sure what data looks like. I would use groupsummary with the groupbin set the 'minute' and the methods set to 'mean'...
3 días ago | 0
Why is my last line coming up as an empty sym?
I don't think you need to use solve in the final line. Substituting in 2 for x will return a value for y. There is nothing left ...
4 días ago | 1
How can I make 2.5x2.5 grid data to 0.5x0.5 grid data.
Use griddata. [Xq,Yq,vq] = griddata(x,y,v,xq,yq)
4 días ago | 0
Empty figure when trying to plot in a for loop
It looks like you are plotting your data one point at a time. MATLAB does not automatically include a marker in the line format,...
4 días ago | 0
| accepted
Converting 3D CAD files to stl?
I am not aware of a function for this. I have always used my CAD program to export my model to STL. Do you still have access to ...
4 días ago | 1
| accepted
Bar with descending data
Because your data is categorical, it is getting plotted in alphabetical order by default. You can change the order using reorder...
4 días ago | 0
how can i fix this error "Array indices must be positive integers or logical values"?
The error means that you are either using a number less that 1, or a decimal number to index a variable. As the error says, your...
4 días ago | 0
| accepted
Index exceeds the number of array elements (40)
Missing a lot of details here, but the error is easy enough to interpret. You are trying to access an element that does not exis...
4 días ago | 0
Extracting data from figures
You have the code that creates the figures, but you want to extract the data from the figure? Why? Don't you already have the da...
4 días ago | 0
Can't saveas in a specific folder => Error using saveas(line 60) Invalid handle
saveas saves a figure to a specific file format. The first input to saveas is expected to be a figure handle. You are passing in...
4 días ago | 0
| accepted
How can I detect car license 2 row?
See these examples: https://www.mathworks.com/help/vision/ug/automatically-detect-and-recognize-text-in-natural-images.html ht...
4 días ago | 0
| accepted
[Beginner] Plotting 3D graphs, but "Error using plot3 Vectors must be the same length."
You appear to have left out the code that initializes Z_1 and Z_2. Depending how you initialize them, Z_1 and Z_2 could have mor...
5 días ago | 0
How to make my code faster when working with for loop code & large array indexing?
A couple thoughts. The biggest speedup will happen by suppressing your outputs. Put a semi-colon after every line. Doing that, ...
5 días ago | 0
| accepted
Delete solutions Matlab Grader
There is not currently a way to remove all solutions. If that is a feature you would find helpful, consider suggesting it here. ...
5 días ago | 1
generate a matrix for each hour and every time it tells me -This is day 1 the ext temp is __ and these are temp for hour __ and display the matrix
Your code is already doing that (though I did add a semicolon to stop it from printing out T in every loop). If you want it to g...
5 días ago | 0
| accepted
Discrepancy between datenum and datetime?
It looks to me like there may be rendering issue here when the x values are datenums as opposed to datetimes. I added a scatter ...
5 días ago | 0
| accepted
just signed up and can't figure it out as it says :"Error using plot Vectors must be the same length."
The result of diff is a vector (you named it k) that has one element less than the input vector (you named it f). The error mess...
6 días ago | 1
| accepted
How can I extract only 10 compression cycles using following data
I think Star Strider gave a pretty good response to your previous question on how to extract cycles and plot them. https://www....
6 días ago | 0
| accepted
Graph only plotting 1 point
The default syntax does not include a marker style. If your plot is only a single point, then you cannot see the line. Just incl...
6 días ago | 1
| accepted
