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Make changes to a text file with numbers and text
str = fileread('hector_400km.txt'); lines = regexp(str, '\r\n|\r|\n', 'split'); for line = 20 : length(lines) modifiedD...

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trivial matrix question: how to rearrange matrices in a given order
A = reshape(1:3^3,3^2,[]) B = permute(reshape(A',[],3,3),[2,1,3]) A = reshape(B,[],3)

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Non linear fit of y=f[x] where y can have multiple values for a single value of x
You can't fit this because bijective mapping is required between x and y. Maybe this can hekp with your task. x = [1,2,3,2,4,6...

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Switching between two integrators, spacecsaft dynamics
I highly discoruage you to switch between dynamical systems because you are making your life much harder for no reason. First, ...

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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...

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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...

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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, ...

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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...

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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)...

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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...

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

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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...

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

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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...

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

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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 -...

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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...

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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...

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Armstrong Number
Write a function name armstrong_check that checks whether the given input is an Armstrong Number or not. It returns logical True...

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Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

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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...

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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',... ...

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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....

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Find the longest sequence of 1's in a binary sequence.
Given a string such as s = '011110010000000100010111' find the length of the longest string of consecutive 1's. In this examp...

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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...

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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...

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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...

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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...

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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...

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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...

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