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How to select specific elements of a matrix and save them in another matrix?
B=A([false;diff(A)>1])

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Legend: is it possible to remove the border while leaving the background color?
set( leg , 'fontsize' , 20 , 'location' , 'east', 'color' , 'g' , 'box' , 'on','edgecolor','g' )

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Reading mat-files from one cell to another cell array
Something like this. Look for function reshape(). O=XTrain; for s=1:88 O{s}=reshape(XTrain{s},x,y,z); end

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How to know whether what are all the toolboxes are using in our current MATLAB machine?
run "license inuse"

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I have no idea if that possible to in Simulink or not , please help
Given a curve and try to figure out an approximate formular is called curve fitting. Don't do it in Simulink. Do it offline in M...

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How can I model the integrator show the desired reset behaviour?
I can say for sure that this is not an Integrator setting issue. For the blue curve, it looks like the response of a highly damp...

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How can I use two different parameters as an input?
If you are talking about "Ks" in the transfer functions, all you need is to define it in MATLAB base workspace, e.g. Ks=100;

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Trying to use different signals at different times
All you need is to set the initial value of the "Unit Delay" block as "Temp FL Initial"

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Is it possible to have a column data with some numerical values and some strings?
Where does A come from? In MATLAB, A can not be stored as A = [53; 26b] or A={53; 26b}. If the source data comes from Excel fil...

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writematrix resizing column widths
Look for the 'PreserveFormat' and the 'UseExcel' properties. Also, look for the writecell() function.

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Converting cell array to matrix
>> a={[1 2],[3 4]} a = 1×2 cell array {1×2 double} {1×2 double} >> cell2mat(a) ans = 1 2 3 4 >>...

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Change output resolution by export_fig
export_fig() must be a customized function. You have to look at its syntax to learn how to specify resolution. You could use th...

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How can I get a string with a line break to be centered in a uicontrol?
I don't know why, but try and error and then got lucky. %% f = figure('Position',[300,300,600,600]); uicontrol('Parent',f,......

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Is it possible to call a callback from one GUI to another separate GUI?
To call a callback is to call a function. So if you save that function in a separate file and package it with GUI1 and GUI2, the...

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Error using sub2ind (line 43) Out of range subscript. How to solve this?
[row1,col1] is the index for mat_zer in sub2ind(), it is using size(mat_zer_pm) Do mat_zer_pm and mat_zer have the same size a...

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Make all values of array Nan except for specified locations
%% a=magic(5); RowPos=[1,3,5]; ColPos=[2,4,5]; ind=sub2ind(size(a),RowPos,ColPos); b=nan(size(a)); b(ind)=a(ind);

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Using dynamic workspace arrays as Matlab function input/output
Use vector signal between part 1 and part 2. No need to use memory block. Use Unit delay to resolve algebric loop if needed. Us...

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Getting output data from Simulink
The different size of the logged data is caused by the variable-step solver. To get a consistent and fixed size log data, use a ...

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Create a block table using script
This inner loop does not make sense. for i = getBlock(n, 1) tableStruct = struct(get(i), 'Name'); end...

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Sine Wave not recognize with find_system
The 'BlockType' for the "Sine Wave" is 'Sin'.

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Force Simulink Coder to regenerate code and rebuild a model
rtwbuild('rtwdemo_mdlreftop','ForceTopModelBuild',true)

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How can I open the Code-Generation Report of the hdlcoder
See this Q&A. https://www.mathworks.com/matlabcentral/answers/278856-how-do-i-open-the-code-generation-report-after-it-s-been-c...

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sim('') command with supressed ";" still displays a variable on command window (it's spamming it)
You need to go to your Simulink model to find the source of the assignment line "y=something" where ";" is not present. It could...

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Can one define a "directory" as a "variable"?
directory='c:\myfolder'; filename='myfile.xlsx'; readtable(fullfile(directory,filename));

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What is the ID of styecheck jc_0803 ??
MA check for jc_0803 in introduced in R2020a. See at the bottom of the link. https://www.mathworks.com/help/releases/R2020a/sim...

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How can find all stateflow objects which used function?
If you use "MATLAB action language" in your chart, then the floor() function is the same as the floor() function provided by MAT...

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Check that point doesnt lay on line in Simulink block diagram
Checking whether a point lays on any existing line will be very difficult. The answer to the OP's question seems to be utilizing...

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How to count the amount of times a specific number appears on an output wave?
Compare your signal with the value of 2, if greater than 2, output true, otherwise false. The output is a square wave. Use this ...

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Syntax error in Simulink
Define a set of example value for u(1) to u(7) in MATLAB, copy and past your expression picece by piece in small parts and execu...

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Format output with constant display values
%% X2=5.6; period=60; fprintf('2*pi*%g/%g\n',X2,period);

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