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

2ヶ月前 | 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(...

2ヶ月前 | 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...

2ヶ月前 | 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...

2ヶ月前 | 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 ...

2ヶ月前 | 2

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

2ヶ月前 | 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...

2ヶ月前 | 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...

2ヶ月前 | 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...

2ヶ月前 | 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...

3ヶ月前 | 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')...

3ヶ月前 | 1

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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-...

3ヶ月前 | 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...

3ヶ月前 | 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...

3ヶ月前 | 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 ...

3ヶ月前 | 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...

3ヶ月前 | 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...

3ヶ月前 | 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 ...

3ヶ月前 | 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...

3ヶ月前 | 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.

3ヶ月前 | 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...

3ヶ月前 | 1

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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(-...

3ヶ月前 | 1

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Plot multiple graphs on the figure using plot(y,linespec)
Use hold on y_vec_1 = rand(1,10); y_vec_2 = rand(1,15); y_vec_3 = rand(1,20); figure(); plot(y_vec_1,'*-r');%gz; hold on...

3ヶ月前 | 0

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2×0 empty double matrix
"why is SAB21 returning " 2×0 empty double matrix"?" Because the expression 2:1 evaluates to an empty vector. SAB21 = SB (3:4,...

3ヶ月前 | 0

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Can I used Unique to find unique x,y,z coordinates in table data?
load('matlab.mat') T = summaryTable1 [g_idx,result] = findgroups(T(:,[1 2 3])); vars_1 = {'meanZm','meanGAIpred'}; vars_0 = ...

3ヶ月前 | 0

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Import mutilple excel files and save then individually as matlab tables, and finally synchronize the timetables
% specify source and destination directories source_dir = 'C:\Wind_Data_Rows_Deleted_2023\test'; dest_dir = 'C:\Wind_Forecast_...

3ヶ月前 | 0

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Set current axes by using axes() is not wokring
To plot like that in a uifigure, make the uifigure's HandleVisibility 'on' (it's 'off' by default), e.g.: app.UIFigure.HandleVi...

3ヶ月前 | 0

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Update UIAxes in App1 after computation in App2
% Button pushed function: GotoApp2Button function GotoApp2ButtonPushed(app, event) app.app1handle = findall(0, 'Name', 'My...

3ヶ月前 | 0

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Storage columns of data from excel sheet on matlab table cell
"I want to create a matlab table" but you show a cell array. These methods create a cell array as you describe: Method 1: T = ...

3ヶ月前 | 1

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Unable to use title() for image.
You have a variable called title preventing you from using the title function. Clear it: clear title and then run you...

3ヶ月前 | 1

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