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Cris LaPierre

MathWorks

Last seen: Today Active since 2018

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Answered
Computing displacement from accelerometer data
I think the first issue is to find the magnitude of the acceleration vector using the data from all 3 axes. From there, you can ...

environ 7 heures ago | 0

Answered
How I can Plot Data Samples as Data values in Y-axis and Sample counter converted to micro second values in X-axis? Then get average and standard variation values?
I highly recommend going through MATLAB Onramp, but the quick answers are 2. Select your x values, then use Ctrl+click to selec...

environ 14 heures ago | 0

Answered
Removing rows with empty values in table
Empty is not a recognized missing value in MATLAB, so rmmissing does nothing. Missing values are defined according to the data ...

1 jour ago | 0

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Answered
Problem in "Increasing Automation with Functions > Creating and Calling Functions > (5/5) Create and Call Local Function", Task 1, MatLab Fundamentals
I just tested it, and it works find for me. Can you share a screenshot of what you are seeing? Try exiting the course and then ...

3 jours ago | 0

Answered
Driving, Cycling, and Walking Activity Recognition with Accelerometers: How to distinguish between the activities using data obtained from an accelerometer?
I would point you to the following examples Human Activity Recognition Simulink Model for Smartphone Deployment Human Activity...

4 jours ago | 1

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Answered
Index in position 1 is invalid. Array indices must be positive integers or logical values.
I believe the issue here is that many of the values of vidIn are 0, which is not a valid index of htextinsCent. In MATLAB, your ...

5 jours ago | 0

Answered
Create a script circle.m that will which receives diameter as an argument and returns two outputs area and circumference. your script should prompt to give diameter
You are creating a function, while the instructions say to create a script. You might be interesting in the input function.

5 jours ago | 0

Answered
Expanding Array as following;
What about this? A=[1 0 0 1]; B = [A;A;A]; B = B(:)'

6 jours ago | 0

Answered
Workspace doesn't show varaibles in MATLAB online
Can you share a picture of your session? I haven't been able to duplicate the behavior. Try logging out and logging back in. If...

6 jours ago | 0

Answered
MATLAB thinks my entire script is commented, no idea why.
How was this file created? When I open the attached file in MATLAB, there are a lot more spaces between each letter. When I o...

6 jours ago | 0

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Answered
cumsum function question for integration
It has to do with the fact that sin(t) starts at 0 and is positive until pi. cumsum is just adding up the Y values, so it oscill...

6 jours ago | 0

Answered
I want to do exponential fitting for power decaying with time
The easiest approach is to use the Curve Fitting app inside a live script. This does require having the Curve Fitting Toolbox in...

6 jours ago | 0

Answered
Plot dynamics of an ODE
I'm assuming your goal is to plot a line for when the function rs is equal to zero for various values of p. You could do that us...

7 jours ago | 0

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Answered
Matlab User Interface - how can I fit more script in one line?
See this answer: https://www.mathworks.com/matlabcentral/answers/89333-how-to-increase-the-portion-reserved-for-writing-in-edit...

7 jours ago | 0

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Answered
Create/Export .stl file from a mesh
You can use the stlwrite function that ships with MATLAB. However, you do need to turn your mesh into a triangulation opject fir...

12 jours ago | 0

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Answered
Why is the run option greyed out here? What am I doing wrong with this function?
It is grayed out because you must call a function with inputs in a live script. See the note at the bottom of this page: "Runni...

14 jours ago | 0

Answered
How to use a slider
My preference would be to create app (simple tutorial incorporates a slider to adjust a plot), or perhaps use a live script with...

14 jours ago | 0

Answered
My matlab code with interp3 is not providing me correct answer. Please help.
I suggest looking at the description of what the inputs to interp3 can be. By taking the unique value of X, Y, and Z, you are l...

15 jours ago | 1

Answered
Create an 1D array x from 0 to 10 interval size 0.5
See MATLAB Onramp, Ch 4 covers creating vectors and matrices.

16 jours ago | 0

Answered
Why do I get the error message : 'Too Many Output Arguments' when I try to execute a function?
What function are you trying to call that is giving you the error? The code you shared doesn't use either of the functions you h...

17 jours ago | 0

Answered
As student how many courses can I enroll as self-pacing?
It depends on the type of license you have. Only the Onramps are freely available. The rest of the self-paced courses require a ...

17 jours ago | 0

Answered
Legend don't match with line style
The legend in MATLAB assigns labels based on the order the line objects are created in. What is perhaps unexpected here is that ...

17 jours ago | 1

Answered
plot row versus one another
See Ch 9 of MATLAB Onramp (Plotting)

18 jours ago | 0

Answered
Why does the license center say I don't have a linked license, but I really do.
Contact support: https://www.mathworks.com/support/contact_us.html

18 jours ago | 0

Answered
How can I save the results of a nested loop?
Note that your preallocation of results does not match the number of times your for loops will run. Keeping your for loops the w...

18 jours ago | 1

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Answered
How can i extract data from data from table using a string of words.
I think the Access Data in a Table page is what you want. You might also be interested in the height and width functions for tab...

18 jours ago | 1

Answered
Do you know how to remove some points from point cloud data?
Perhaps the pcdenoise function? Go through the examples on that page to see if it does what you want.

19 jours ago | 0

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Answered
Issue during for loop.
We are not familiar with the problem you are trying to solve, so can't comment on what the code 'should' be doing. We can only c...

19 jours ago | 0

Answered
How do I concatenate properly?
You need to put parentheses around your values to the left and right of the colon operators to force the order of operations to ...

19 jours ago | 0

Answered
Rotating DICOM file around z-axis
Y is uint16 while Rz is double. However, converting Y to double will just lead to a dimension error with your matrix multiplicat...

20 jours ago | 0

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