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How can i found the infelction point from the data and remove the data before the first and last infelction points.
The ischange, islocalmin, and/or islocalmax functions may be of use to you, as might the corresponding Live Editor Tasks Find Ch...

3 years ago | 0

Answered
How to make a function and input another function
I think what you want is: y = bbb(@humps, 0.5, 1) function [i] = bbb (r,a,b) i=r(a)-r(b); end

3 years ago | 1

Answered
Getting error : Unrecognized field name "array".
Does this command indicate that train.mat contains a variable named array? whos -file train.mat % or whos('-file', 'train.mat')...

3 years ago | 0

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Using strjoin to put as a variable name in a table
Specify VariableNames as either a cell array containing char vectors or as a string array. Don't specify them as a cell array co...

3 years ago | 1

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Answered
Why is 'step' function not accessible (MATLAB online and installed)
As far as I'm aware none of the functions named step in MATLAB can be called with no input arguments. Is this perhaps a script o...

3 years ago | 0

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Genvarname for array of structs with indexing
Can you dynamically create variables with numbered names like AB1, AB2, AB3, etc.? Yes. Should you do this? The general consens...

3 years ago | 0

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Time-based integration of ODEs
The problem you've written out looks quite similar to the "Pass Extra Parameters to ODE Function" example on the ode45 documenta...

3 years ago | 0

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Answered
Dot indexing is not supported for variables of this type in a for loop
First: n_snapshots = natsortfiles(files); n_snapshots was a struct array. But then: if iscell(n_snapshots) == 0; n_snaps...

3 years ago | 0

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Answered
defining a fitting type
See the "Create Custom Nonlinear Models and Specify Problem Parameters and Independent Variables" and "Use Anonymous Functions t...

3 years ago | 0

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I cannot give this struct as input of a custom function, how can I do?
It is possible to write a function that accepts a struct array as input. Without seeing the body of your myfunction function we ...

3 years ago | 0

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How to use call helper functions for the definition of constructor method in user-defined class?
For your first question, if helper_function doesn't require any information about the state of the object it probably doesn't ne...

3 years ago | 1

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Answered
what does this error mean and why cant i use the if function i use it in another function and it worked
The end keyword on line 705 closes the if statement on line 689. The end keyword on line 706 closes the function definition on ...

3 years ago | 0

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How to perform inverse between a page of a 3D matrix and a column vector without loops?
Why do you insist to do this without looping? If you have been told "for loops in MATLAB are slow" that is not necessarily the t...

3 years ago | 1

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Answered
Solving a system with embedded differential and non-differential equations
I assume you've written this function in a file named difsyssolve.m and that your call to ode45 is not in that same file? funct...

3 years ago | 0

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How can we generate all n by n matrices with entries {0,1,2,...,m-1} for any natural numbers m and n?
How large are the values of m and n in which you're interested? What are you planning to do with these matrices once you've gen...

3 years ago | 0

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this code is for contrast adjustment how to fix this error
You're passing a 2-by-3 matrix into imadjust as its second input argument. According to that documentation page this is valid if...

3 years ago | 0

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Answered
Symbolic sin(pi) in Matlab 2020 a not simplify
Another possible solution if you're just trying to avoid the roundoff error involved in approximating as pi is to use the sinpi...

3 years ago | 0

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How do I create a new table variable based on the concatenation of two or more categorical variables?
Do you want these new identifiers (Ford_SUV, Ford_Sedan, BMW_Compact, etc.) to be new categories in a new categorical variable i...

3 years ago | 0

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how to made matrix of x,y,z from .xyz format file?
There's a website that lists what applications create files with various extensions. Searching for .xyz on that site lists seven...

3 years ago | 0

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How can I turn the property inspector off?
When you open Property Inspector it enables plot editing mode. [Note that the arrow icon in the toolbar has been selected after ...

3 years ago | 0

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argument gets deleted without a reason (Invalid or deleted object. Error in images.roi.Freehand/get.Position )
This is not a bug. By default, when you call plot MATLAB will reset all axes properties (except for Position and Units) and del...

3 years ago | 1

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Answered
Error using toolbox "pattern" function
According to the Version History section on its documentation page the pattern function in Satellite Communications Toolbox was ...

3 years ago | 0

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Transpose does not support N-D arrays error
I'd probably adapt the "Interpolate Multiple Sets of Values on Same Grid" example from the griddedInterpolant documentation page...

3 years ago | 0

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How do I change a string object into a variable name that heatmap accepts
This seems to work with a simpler example. T = array2table(magic(5)) V = string(T.Properties.VariableNames) heatmap(T, V(2), ...

3 years ago | 0

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Value assigned to variable might be unused error
Note that this is not an error. This message is a Code Analyzer warning indicating that there may be a problem with this code. I...

3 years ago | 0

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Error:not enough input arguments
You must call your calibrate function with an input argument (whatever your readMag function requires as its first input). You c...

3 years ago | 0

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How can i filter a table with several variables
If you turned your table into a timetable using table2timetable you could use a timerange to index into the rows of that timetab...

3 years ago | 0

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is not in the application's expanded CTF archive at
As per the first Tip on this documentation page, if there is no call to the constructor of the class in your application the sta...

3 years ago | 0

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how to access private
As stated in the documentation properties with Access = 'private' "can be accessed only by members of the defining class." You c...

3 years ago | 0

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can some one explain the syntax of this code please
I suggest you start with the free MATLAB Onramp tutorial to quickly learn the essentials of MATLAB. Once you've gone through tha...

3 years ago | 1