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error Unbalanced or unexpected parenthesis or bracket
You may want to change the c1 line as follows. It is grammatically correct, but not necessarily correct for your problem. You ...

4 years ago | 0

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Fill array between values
The rule is not clear in your question. In first/second row, you fill 3 between first 1 and last 2. In third row, you fille 3 b...

4 years ago | 0

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How can I use ODE45 continuously?
Just change D depending on t. Run the solver over the whole time period. [Update: See @Walter Roberson remarks below. The re...

4 years ago | 1

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Answered
MATLAB stft vs spectrogram
stft focuses on the FT of windowed and segmented (overlaped) data and the output can be used to reconstruct the original (under ...

4 years ago | 0

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How to add slides with images and tables in company standard template ?
If you have access to MATLAB report generator: https://www.mathworks.com/help/rptgen/ug/update-presentation-content-programmati...

4 years ago | 0

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How can I change the width of a tile in a tiledlayout without changing its height?
By changing figure size, you can achive that effect. figure('Position', [1, 1, 600, 400]) t = tiledlayout(1,3,'TileSpacing','C...

4 years ago | 0

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How to handle large variables in workspace
Only process the latest data and throw away old data. You need to consider streaming processing of your data. See suggestions ...

4 years ago | 0

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Answered
Select particular elements from a cell array to form a matrix (double type)
x = zeros(size(results)); for i=1:size(results, 1) for j=1:size(results, 2) x(i,j) = results{i,j}.endo_simul(17, ...

4 years ago | 0

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Answered
normalize the vector by taking the difference from the first element
T = [1; 2; 3]; T1 = T -T(1)

4 years ago | 0

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How can I make points show through a surface plot?
% Plot a sphere and a line [x, y, z] = sphere; h = surf(x, y, z); hold on plot3(-1:1, zeros(3,1), zeros(3,1), 'r', 'LineWid...

4 years ago | 0

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Answered
What is the most correct way of determining whether variable contains a number
It seems that you have to write your own function: [t, f] = isstranum(5) [t, f] = isstranum('nan') [t, f] = isstranum('-512.3...

4 years ago | 0

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Graph data series with colors
load data.txt scatter(data(:,1), data(:,2), [], data(:,3), 'filled'); colorbar;

4 years ago | 0

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Cell array formatting /restructuring
Here is a portion of code for you to further expand: % load data d = load('Data.mat'); n = size(d.Data, 1); % Find the FRA...

4 years ago | 0

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Answered
Compare elements of an array with all elements in a matrix
P = randn(5,4) C = randn(1,4) lv = C > P

4 years ago | 1

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Reading and Processing Many Text Files
foldername = 'C:***FILE LOCATION***'; % True folder name needed fileprefix = 'RESULTS_ONE_'; for i=1:N ...

4 years ago | 0

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Answered
I created a code which does filtering with convulution but it gives an error
The image has 3 channels and is a 3D array. You need to loop over the 3rd dimension as well. Use a different image below. A =...

4 years ago | 0

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Answered
how to make a row all zeros in a matrix based on the two random number generated???
You can arrange A..F into a 3D matrix. X = randn(6,3, 6); idx = randperm(6, 2) for i=1:length(idx) X(idx(i), :, idx(i)) = ...

4 years ago | 0

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Answered
what is difference between C=+A, C=A, C=unary(A)? All three provide same assignment of matrix A to C
C=+A; C = uplus(A) is an alternate way to execute +A, but is rarely umeased. It enables operator overloading for classes. So ...

4 years ago | 0

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Answered
How can I Implement Runge Kutta 4 to plot the trajectory of a given point in a vector field?
As you have the intial point (0,0) and the intial speed (0,0), so the solution never progress to a different point. If you chan...

4 years ago | 0

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Answered
How can I Implement Runge Kutta 4 to plot the trajectory of a given point in a vector field?
tspan = 0:.1:10; x0 = [0; 0]; [t,x] = ode23(@odefun,tspan,x0); subplot(211); plot(t, x); xlabel('t'); legend('x', 'y') subpl...

4 years ago | 0

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How can I Implement Runge Kutta 4 to plot the trajectory of a given point in a vector field?
Matlab has ode23 and ode45. https://blogs.mathworks.com/cleve/2014/05/26/ordinary-differential-equation-solvers-ode23-and-ode45...

4 years ago | 0

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Add String to Matlab Plot Annotation
pfSize = 2; dim = [.2 .5 .3 .3]; str = ['Pf Size:' num2str(pfSize)]; % use [] instead of () plot(rand(10,1)) annotation('te...

4 years ago | 0

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Answered
How can I fill a map drawn with plotm with red color?
plotm is for lines. you can use patchesm for area. load coastlines axesm sinusoid; framem patchesm(coastlat, coastlon, 'r')...

4 years ago | 1

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Answered
How do I have a loop for different data intervals.
A=rand(50,10); idx = [1 10; 11 22; 23 40]; for i=1:size(idx,1) Anow = A(idx(i,1):idx(i,2), :); T = Anow'*Anow; end ...

4 years ago | 0

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Answered
Sudden error "Unidentified function or variable"
[X1 Y1] = Elispe(1, sqrt(4/3), 0, 0, 0, 2*pi); % Z1 = zeros(1, length(X)); Z1 = zeros(1, length(X1)); %Z2 = ones(1, length(...

4 years ago | 0

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How do you do freestyle drawing in MATLAB?
This gives you a schetch. You can fill up the rest using "text" and "plot" commands. x = 5:30; y = .2*(x-12).^2 -30; plot(x,...

4 years ago | 1

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Answered
gaussian noise in infinite samples in real time matlab
t = 0; sigma = 1; % noise rms value while true x = cos(2*pi*0.01*t); % received data x = x + sigma * ra...

4 years ago | 0

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Answered
How to create subplot with .png images in a loop
Try montage in image processing toolbox for display multiple images. a = imread('onion.png'); imageArray = repmat(a, [1 1 1 3*...

4 years ago | 0

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Answered
How to adjust the legend of pie chart
Adjust the parameters if necessary. The plot in this web livescript is for illustration only. subplot(232); pie([51 2 45 2]);...

4 years ago | 0

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How to make line plot of 3 different colors?
% data x = [2:26 26:-1:-5]; y = [20:-1:-4 -5:-1:-36]; idx1 = y>=0; idx2 = y>=-10 & y<=0; idx3 = y<=-10; plot(x(idx1),...

4 years ago | 0

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