Mark Lepage
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Awarded to Mark Lepage on 21 Oct 2020
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Question
Was struct2array removed from MATLAB?
I am using a newish program, but I am getting the error: Unrecognized function or variable 'struct2array'. I remember using th...
plus de 2 ans il y a | 1 réponse | 0
1
réponseQuestion
Complex (I think) combination problem?
Hello everyone, I'm wondering how I could go about solving this combination problem. I have 5 groups, that I need to select fr...
presque 4 ans il y a | 1 réponse | 0
1
réponseQuestion
How to update large data plot (collected over time), with multiple data series in MATLAP App?
Hello, So I have an app, where I am collecting external data from 16 different sources. This data is constantly being updated, ...
environ 4 ans il y a | 1 réponse | 0
1
réponseQuestion
I am importing Facebook messages from JSON, but getting weird symbols instead of standard quotations and such?
Hello, I am trying to import my chat history to do some analysis on it. However my messages are turning weird, for instance, an...
plus de 4 ans il y a | 1 réponse | 0
1
réponseQuestion
How do I stabilize a video on a single feature in video
I have a video I am trying to stabilize, based on a single feature only - i.e. I have multiple people walking in and out of the ...
plus de 4 ans il y a | 1 réponse | 0
1
réponseQuestion
How to run a script using Windows Task Scheduler WITHOUT opening new instance of MATLAB?
So I've used Windows Task Scheduler to run MATLAB scripts before, so I am well aware of this. The problem now is that my compu...
presque 5 ans il y a | 1 réponse | 0
0
réponseQuestion
Trying to make a PUT request using webwrite - "Unsupported Media Type"??
Hello everyone, So I am working withe Yahoo Fantasy API, and can freely make API GET requests, using the following weboptions: ...
presque 5 ans il y a | 1 réponse | 0
1
réponseQuestion
How to calculate the total heat flow on a surface using MATLAB PDE solver?
I have a 3D PDE I am solving for. I am setting dirichlet boundaries, and need to calculate total heat flow on the full surface o...
environ 5 ans il y a | 1 réponse | 0
1
réponseQuestion
I have X-Y-Z and time data of a particle. Can I create a plot that will show the position of this particle over time? (i.e. a movie)
As title says, I have X-Y-Z and time data for a particle that we tracked. I am curious if anyone knows of a method to conver...
plus de 5 ans il y a | 1 réponse | 0
0
réponseQuestion
Quiver plot arrows hidden by surface plot?
Hello all, I am creating a surface plot, and plotting on top of this a quiver plot. Everything works great, however where I hav...
plus de 5 ans il y a | 2 réponses | 0
2
réponsesQuestion
Is it possible to create imdistance line on a mouse click and trace the line as seen with the distance tool in imtool?
So, I have an image, I would like to be able to trace a line (snap from point to point) like how is down with imtool and the dis...
plus de 5 ans il y a | 1 réponse | 0
1
réponseI am plotting random circles using the plot function on a white background, how to convert this plot to a binary matrix?
Hey everyone, I got around this by using imageOut = insertShape(img,'FilledCircle',M,'Color','black','Opacity',1); where img ...
presque 6 ans il y a | 1
| A accepté
Question
I am plotting random circles using the plot function on a white background, how to convert this plot to a binary matrix?
So I am trying to simulate some random circles on an image. I am creating a white background of the appropriate resolution by...
presque 6 ans il y a | 2 réponses | 0
2
réponsesQuestion
How do I organize(format) multiple text boxes and charts to an output figure?? Basically create a customized report as the output??
Hello, So I have a program that is going to generate a bunch and numbers and graphs for me. Instead of having the format all t...
presque 6 ans il y a | 1 réponse | 0
0
réponseQuestion
How do I call on a function created outside of the App Editor?
Not sure if I am describing my problem correctly, but what I would like to do is call on a script/function I have created when a...
environ 6 ans il y a | 2 réponses | 0
2
réponsesQuestion
How to update structure and delete entries from structure?
Hello, I have searched the forums and have not found a work around for my issue. I am using regionprops that is analyzing ...
environ 6 ans il y a | 1 réponse | 0
1
réponseQuestion
How do I define the boundary condition between two conducting materials to solve a PDE?
Hello, As the question describes, I'm looking to solve an electrostatics PDE, where I have two different conducting materials...
plus de 6 ans il y a | 1 réponse | 0
0
réponseQuestion
When solving a PDE, how to assign different conductivity values to different volume regions?
Hi, I am trying to solve an electrostatic PDE, where the electrical conductivity changes within the volume of the solution. ...
plus de 6 ans il y a | 1 réponse | 0
1
réponseQuestion
Taking gradient of solution and plotting results in very weird and unsmooth graphs?
Hello, So I am interpolating a PDE solution to a meshgrid, and then taking the gradient of this. When I plot the resulting...
plus de 6 ans il y a | 1 réponse | 0
1
réponseQuestion
Can I program the selection of faces for PDE modelling of a 3D object?
I am doing PDE analysis on a 3D object. However, I need to alter the geometry to test different configurations of my object. Doi...
presque 7 ans il y a | 1 réponse | 0
1
réponseQuestion
How to extract slice of 3D PDE solution into a matrix? Works with slice to plot, but want the actual date
Hello all, I have a 3D PDE solution. I want to extract a slice of this solution into a matrix to do further analysis (I wa...
presque 7 ans il y a | 1 réponse | 0
1
réponseQuestion
How do I calculate the heat flow at a Dirichlet boundary surface, given a set temperature gradient?
So I am dealing with potential and current flows, but the thermal analogy will work here. Basically I have a set geometry (a ...
presque 7 ans il y a | 1 réponse | 0
0
réponseQuestion
How to control the location of an .stl from importGeometry, i.e. set midpoint to z = 0?
Hello, As the title says, I am importing an .stl file to do analysis in the PDE toolbox. Everything works fine, however, i...
presque 7 ans il y a | 1 réponse | 0
0
réponseCalculating gradient of a matrix - too many outputs... Not sure why?
I can't believe I didn't notice this, But the error stems from the negative sign I had in front of the gradient function. ...
environ 7 ans il y a | 0
| A accepté
Question
Calculating gradient of a matrix - too many outputs... Not sure why?
Hello, I have calculated a result matrix using the integrating function on matlab, however when I try to calculate the gradie...
environ 7 ans il y a | 1 réponse | 0
1
réponseQuestion
How to queue a list of videos for analysis?
Hello, I have a program written that does certain analysis on a video. However, I need to perform this analysis on many video...
environ 7 ans il y a | 1 réponse | 0
1
réponseQuestion
Applying xcorr2 to match two subsequent images. Do I need normxcorr2, do I need to substract mean values?
Sorry for the title gore, but basically I am tracking the downward vertical flow of some bubbles. I have two images, the first a...
environ 7 ans il y a | 1 réponse | 0
0
réponseQuestion
How do I update a struct array in a for loop?
I am determining the equivalent diameter of circles in a series of images. My code is as follows: for k = 1:20 I ...
environ 7 ans il y a | 1 réponse | 0
1
réponseQuestion
Is it possible to do a 2d cross correlation (xcorr2) in only one direction?
I am trying to calculate the distance a froth has moved between two consecutive frames, but I'm only interested in the vertical ...
plus de 7 ans il y a | 1 réponse | 0
1
réponseQuestion
I need to find the distance between a background image and an overflowing foam
<</matlabcentral/answers/uploaded_files/81620/IMG_5148.JPG>> I've attached the background image, a foam will flow over the li...
plus de 7 ans il y a | 1 réponse | 0
0
réponse
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