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point inside an area
The coordinates in x_boundary and y_boundary don't specify the polygon you mean to specify, because the points are out of order....

15 days 前 | 0

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Error using plot Invalid data argument.
Try replacing x = t.ModelName; with x = categorical(t.ModelName); And run the code again. If that doesn't w...

17 days 前 | 0

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How to permanently hide the toolbar for an axes even after replotting
You can delete it, e.g.: delete(gca().Toolbar)

18 days 前 | 0

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Why won't my computer display the top of the output? Why does it cut if off?
Most likely the number of lines output to the Command Window exceeds the command window scroll buffer, which by default is 5000 ...

19 days 前 | 0

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How can I repeat row and column extraction of a matrix until the end of the matrix is reached?
M = rand(1015,2); incr = 145; m = size(M,1)/incr; n = size(M,2); newM = reshape(permute(reshape(M,[],m,n),[1 3 2]),[],m*n)...

20 days 前 | 1

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I am getting wrong results for the Continuous wavelet transform (CWT) on converting the frequency axis (Y Axis) from log scale to linear scale for the same frequency limits.
Use a surface rather than an image. A surface allows you to use arbitrary x and y values, whereas an image requires linearly spa...

20 days 前 | 0

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已回答
How to get a single output from a function with 2 inputs and 3 possible outputs depending on the choice made for inputs.
Here's one option: rot('x',pi/3); function rotmat=rot(axis,rotation) switch axis case 'x' rotmat=[ 1 ...

21 days 前 | 0

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How to provide a positive and negative value for the tolerance value?
"I want the tolerance value to be both positive and negative" Use abs. However, you also need to compare the current result wi...

21 days 前 | 2

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已回答
Eliminate Nan row in a large matrix
A(any(isnan(A),2),:) = [];

21 days 前 | 0

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Is it possible to realize such loop in MATLAB?
x = 10; n_iterations = 5; results = zeros(1,n_iterations); r = 1; for ii = 1:n_iterations r = r*(x-ii); results(...

22 days 前 | 0

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Combining text with non-zero elements of a 2D array
Here's one way: N=[10 0 0 0 0; 0 20 0 0 0; 10 0 20 0 0; 0 0 0 10 0; 0 0 0 0 30] C={'ABC';'DEF';'GHI';'JKL';'MNO'} n_col = siz...

22 days 前 | 0

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Combining text with non-zero elements of a 2D array
Here's one way: N=[10 0 0 0 0; 0 20 0 0 0; 10 0 20 0 0; 0 0 0 10 0; 0 0 0 0 30] C={'ABC';'DEF';'GHI';'JKL';'MNO'} n_col = siz...

22 days 前 | 0

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Is there a meaningful guideline on when to use parentheses vs square brackets vs curly brackets in writing MatLab code?
If you share a particular snippet of code that is confusing, someone here can probably explain it. (Of course, that code may be ...

25 days 前 | 2

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How do I print a % character into a file
fprintf(app.SessionFile,"%s",str);

25 days 前 | 0

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How do I create a timetable from a file that contains several data columns with associated time columns?
txtArray= {'Sig1_Time' 'Sig1_Value' 'Signal2_Time' 'Sig2_Value' 'Sig3_Time' 'Sig3_Val...

25 days 前 | 0

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Why is my table getting all the same values when it shouldn't?
The basic problem is that R and C are vectors, and the Simulink model appears to only use the first element in that case. The s...

25 days 前 | 1

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how do I load zip file in matlab code?
Use <https://www.mathworks.com/help/matlab/ref/unzip.html unzip> to extract the files from the zip archive. Then read/load the r...

26 days 前 | 0

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How can I write data to a text file in a user-specified location that is already populated with a standard header?
You can call writematrix with 'WriteMode','append' to write the data to a text file that already contains the header. So the co...

27 days 前 | 0

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How to correctly adjust the FaceColor property of patch objects in a figure with a legend?
fig = openfig('cylinder.fig','visible'); There are actually 12 patches in the figure all_patches = findall(fig,'Type','patch')...

27 days 前 | 1

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已回答
undo a command in matlab plotting in 2d
In the figure window go to Tools menu > Edit Plot. Using the mouse cursor select the line you want to remove, then either right-...

28 days 前 | 0

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Issue with plotting order
Data = readmatrix("FigureOfMeritResults.xlsx"); % Extract data Date = Data(469:1908,1); FoM = Data(469:1908,3); GHI = Data(4...

28 days 前 | 0

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Plots coming out weird
You likely have pre-existing X and Y variables in your workspace, which are being plotted in their entirety. Since the code show...

29 days 前 | 0

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Separating and indexing (k-wave) datasets to different planes/coordinates
One way to separate the the data for the two sensors is using the following approach % Extraer resultados de sensor1 y sensor2 ...

30 days 前 | 0

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assign the fields of a structure correctly
Assuming the set of table variable names is the same between d1 and app.Preset_UITable.Data (but potentially in a different orde...

30 days 前 | 1

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Why converting from Spherical to Cartesian using the command "sph2cart" gives different values than converting it manually by writing the equations of each coordinate?
Assuming theta is azimuth and phi is elevation, your equations would be (from the documentation): x = r .* cos(phi) .* cos(thet...

1 month 前 | 1

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Turning a 1x3001 array into a 14x3001 array to make two things the same size and perform math on them...
You don't have to explicitly repeat the 1x3001 row vector 14 times in order to add it to the 14x3001 matrix. Here's an example ...

1 month 前 | 0

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how to make figure full axes
Setting the figure's WindowState property to 'fullscreen' may achieve the desired effect, e.g.: fig = figure('Units', 'pixe...

1 month 前 | 1

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Why do I get "Array indices must be positive integers or logical values" error ?
When i is 100, Per(100-i) is Per(0), which causes the error since 0 is not a valid index in MATLAB.

1 month 前 | 2

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Why does Tiledlayout return error when using a figure with datetime as x-axis?
datetime x-axis is supported in tiledlayout. Here's an example: x = datetime(2024,9,3):hours(1):datetime(2024,9,5); y = rand(s...

1 month 前 | 1

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已回答
How to use different colormaps for different function in mesh plot.
Here is one way: % data x = linspace(-3,3,100); y = linspace(0,3,100); [X,Y] = meshgrid(x,y); Rho2 = X.*X + Y.*Y; Z = exp(-...

1 month 前 | 1

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