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Creating a rectangular patch using random numbers
You can't really fix this. A plane is univoquely defined by 3 points in space, so, most-probably, a fourth point won't lie on t...

1年以上前 | 1

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How to find how many values in one column in csv file?
Once you upload the data from you .csv you can find start and end indeces by doing: data = randi(2,1e3,1) - 1; startIdx = strf...

1年以上前 | 0

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Polarplot - plot arc between points instead of line
point1 = [3, 4]; point2 = [10, 0]; radius = 6; dir = 'Up'; nPoints = 50; [x, y, c] = getArc(point1, point2, radius, dir, ...

1年以上前 | 0

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I am using surf command inside time loop. And I want my initial reference surface.
To plot multiple object you want to use: hold on; If you ant to iterate different plot but only retain the first one, the me...

1年以上前 | 0

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How to define color axis in a for loop?
By axis color, do you mean something like this? nPoints = 10; [X,Y] = meshgrid(-3:6/nPoints:3,-3:6/nPoints:3); Z = peaks(X,Y)...

1年以上前 | 0

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Trying to simultaneously solve the following, but I'm getting the following error, can someone please tell me how to fix it?
Try this syntax: syms F G eqn = [2 * F^2 * G^2 + 3 * G == 13.8 , 2 * G^3 + F^2 == 16.6]; sol = solve(eqn, [F G]) If you re...

1年以上前 | 0

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How can I graph a cylindrical magnetic dipole?
With quiver or quiver3 [Ref].

1年以上前 | 0

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Convert Matlab Cell-Array with subtables into a python variable type
I do not know specifically how to pass data from Matlab to Python, but my way of doing it would be to store the cell in Excell s...

1年以上前 | 0

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"Maximum recursion limit of 500 reached." when loading model in Simulink
set(0,'RecursionLimit',1000);

1年以上前 | 0

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How do you get a function to return true or false to the script where the function was called?
the file play_blackjack.m is not a script, but a function. In blackjack.m change the line: play_blackjack To: game = play_bl...

1年以上前 | 1

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Why does the heatmap chart color some numeric values differently?
>> h = heatmap(tbl,'Smoker','SelfAssessedHealthStatus','CellLabelColor','Black'); % ...

1年以上前 | 0

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How to shade with upper and lower limits along a curve line? (see example in image below)
N = 100; x = linspace(0,2*pi,N); y = 1 + cos(x); yNoiseUp = y + 0.5 + .25*(sin(x) + .25*(rand(1,N) - 0.5)); yNoiseDown = y -...

1年以上前 | 0

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How to create string of text-objects
You can't concatenate doubles and string in one array, because the array can be only one of them. If you want to only store the...

1年以上前 | 1

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Chain array indexing error to access elements of a function
The fact that you can't concatenate indexing is a well-known Matlab limitation whose implementation has already been suggested o...

1年以上前 | 0

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How can I make my lamp indicator color turn green once it reaches a certain number with the app.label.Text
uilabel dont allow much interactivity. I guess you have some familiarity with Callbacks, so I suggest you to use uieditfield an...

1年以上前 | 0

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Combine Plot and Scatter in Legend
x = 1:10; y1 = randi(10,1,10); y2 = randi(10,1,10); y3 = randi(10,1,10); figure; hold on; grid on; plot(x,y1,':d',... ...

1年以上前 | 0

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Graphical output of subscripts in one main script
Your code is fine but you need to delete the first line: clc, clear, close all I did it and saved your script naming it fig_4....

1年以上前 | 0

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Looping for cell arrays
Add a second loop for the rows: for row = 1 : size(down_files,1) for col = 1 : size(down_files,2) fileread(down_f...

1年以上前 | 1

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Help with matlab script
1) Correct me if I am wrong, but with "I'm not seeing the values appear in the workspace", I think you are saying you only see t...

1年以上前 | 0

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I am getting the following error: Error using atan2 Inputs must be real. Error in (line 27) phi_vet = 2*atan2(-k_1-sqrt(k_1.^2+k_2.^2-k_3.2),k_3-k_2);
The term inside the square roort has some negative values, thus producing imaginary numbers. sqrt(k_1.^2+k_2.^2-k_3.^2) I am...

1年以上前 | 0

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Hyperbolic Fitting using multiple data sets from each experiment.
Please try to use the forum next time, as your answer was just a simple search away. data = readmatrix('Model.xlsx'); x = da...

1年以上前 | 0

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Finding correct MinPeakDistance using for loop
Your idea of increasing 'MinPeakDistance' to adjust the peaks found is not consistent. For example, if you iterate manually, yo...

1年以上前 | 0

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fill and replicate numbers in the matrix
You can re-adapt your data to exploit this very nice method to divide stimuli into a cell array. Then is just a metter of manip...

1年以上前 | 0

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EEG frequence and noise estemation
Look at fft documentation: x=load('5.txt'); y = fft(x); PS = abs(y).^2; N = length(x); fs = 500; % From documentatio...

1年以上前 | 0

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how is it possible to correspond negative coordinates to matrix indices?
You can normalise the coordiante to transorm them into indeces: x = -9.5 : 9.5; % -9.5 -8.5 ... 8.5 9.5 xIdx = x - x...

1年以上前 | 0

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Make a Truth Table
From the graph I see that the peaks marked are, as you say, over the half, but of the limits of the y axis, not of the maximum v...

1年以上前 | 0

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How do I make ListBox items wrap?
In general, for uicontrol components you would use textwrap, but it doesn't work in App Designer. Some of them, such as uibutto...

1年以上前 | 0

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How to save and later clear the data taken through editText in a .txt file automatically with the current timestamp ?
You can use the Children property of your (ui)figure to collect every TextEdit object and access the String inside. You can the...

1年以上前 | 0

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How can I process the image and extract the spacing between individuals dots in a row ?
img = imread('image.png'); [centers, radii, metric] = imfindcircles(img,[5 18]); You can compute the distances from centers....

1年以上前 | 0

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Plotting matrix on grid of squares
I learned to code these kind of applications by studying Brian Moore's File Exchange. In particular, you can check his very nic...

1年以上前 | 0