# Thomas Satterly

Last seen: 9 meses hace Con actividad desde 2019

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Pre-allocating memory for a while loop
If you don't know how large your arrays need to be for preallocating the entire array, what you can do is allocate "chunks" of t...

más de 4 años hace | 0

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Adding a Graph into a uipanel GUI
You need to create an axis object where the data will be plotted and pass this axis as the first argument to your plot function....

más de 4 años hace | 0

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How to create 2D matrix from 3D without a loop?
Here's one way to do it with vectorized code. Calculating the column index list can probably be done better, but it gets the ide...

más de 4 años hace | 0

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Plotting a meesh?
Without seeing your data, it's difficult to say exactly how you shoud go about representing your data. However, something like t...

más de 4 años hace | 0

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Is it possible to take a Screenshot of a website with Matlab?
Here's one way to do it using some java from withing Matlab. If you want to save the resulting image, see imwrite. % Open up a ...

más de 4 años hace | 1

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Need help with heuns method (rk2) for second order DE
1) You forgot to index the variable "v" in a couple places 2) Matlab indicies start at 1, not 0. Corrected code: % Runge...

más de 4 años hace | 0

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Change Logo on Matlab Figure (not GUI)

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How to Set Sine Wave Frequency
Make sure your time step is small enough to capture oscillations on the order of GHz. You might be generating the "correct" sign...

más de 4 años hace | 0

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Remove a number and its duplicates, not just the repeated values i.e. the way the unique function operates
This should lead you along the right track: % Ex: % A = [2;2;4;3;3;5;6]; % remove(A, 2) Removes all 2's % remove(A, 2, 3) R...

más de 4 años hace | 0

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how to select two arrays from a group of four
To find the sum square of an array: sumSquared = sum(array.^2); If you have your arrays all together in a matrix: % If eac...

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adding for loop to prevent changing char to same char
This is an interesting problem and a fun challenge. You don't need a for loop, rather, you can only allow different letters to b...

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find(vector==value) not working
While it looks like the 17th value of your vector is 0.16, it's actually slightly off because of floating point precision. What ...

más de 4 años hace | 1

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Creating Variables with GUI inputs
There are a number of ways to store data in a GUI so that it's accessible to different functions. Matlab's suggested way of pass...

más de 4 años hace | 0

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Data acquisition and Visualisation of LIDAR sensor in REAL TIME
Matlab isn't very good at graphics with high update rates, but it is doable. I'd suggest looking at the line and scatter objects...

más de 4 años hace | 1

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Custom class property and method attributes
So Matlab doesn't support this type of thing, which can't really be too surprising. The best way I've found to get around this i...

más de 4 años hace | 0

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Plotting 3d orientation and position data (3d lines)
Check out quiver3 - it basically plots a vector field for the supplied points. For your case, you'll want X, Y, and Z to be the ...

más de 4 años hace | 1

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Two y-axis colors
Assuming you did something similar to the code below, you can access the axis properties directly and change the color to whatev...

más de 4 años hace | 0

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New to matlab, help?
Since this is an assignment, I'm not going to just give you the code, but there are a few pages you should look at to get you on...

más de 4 años hace | 0

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User surface on piano
Matlab has button click callbacks for graphical types. There's always multiple ways to approach a problem, but this is the route...

más de 4 años hace | 2

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How to plot arrays of different sizes using interp1?
I would suggest using cross-correlation to find out where these two signals match up the best. The data you posted needs a littl...

más de 4 años hace | 0

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Get variables from my Matlab workspace
You should be using either inports or parameters to pass data from Matlab to you Simulink block. The "From Workspace" block work...

más de 4 años hace | 0

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3D plot help
If you're expecting the independant variables X, Y, and Z to make some nice looking 3D surface, you can use Delaunay Triangulati...

más de 4 años hace | 0