Answered
how do i solve this error: Undefined function 'imnoise' for input arguments of type 'uint8'.
The imnoise function is part of Image Processing Toolbox. Check the output of the ver function to determine if you have this too...

17 days ago | 0

Answered
I am learning still and i have no idea how to write 8y''' - y' = cos(20t) + sin(2t) in matlab
How are you trying to solve the ODE? Numerically or symbolically? If numerically, see the van der Pol example on this documenta...

17 days ago | 0

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using linspace in a matrix incrementing by a certain number
There are several functions for creating regularly spaced vectors of given lengths depending on which three of the four paramete...

19 days ago | 0

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Can we get functions from the curve fitting toolbox?
You can evaluate a fit as shown by the sections on this documentation page and this documentation page whose names start with "E...

19 days ago | 0

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MATLAB switching between integer and floating numbers in a loop during computation
What you're missing is that 0.1 is not exactly one tenth. Welcome to the world of floating point arithmetic. See the "Avoiding C...

20 days ago | 0

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Answered
MATLAB 'copy command' has unrecognised function or variable
The command is correct. I just tried it and it opened the example as I expected. From the Release Notes for release R2022b, "Ma...

20 days ago | 0

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How can I replace inline
To convert a symbolic expression into something you can evaluate numerically use the matlabFunction function.

21 days ago | 0

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where is the assised function in the example of using cycle-GAN denoise?
In general, to access helper functions for an example you should open the example in MATLAB (either your desktop installation of...

21 days ago | 0

Answered
Unrecognized property string for class Panel
Since handles.fitting1 is a Panel object according to the error message, let's look at the list of Panel properties and see if S...

21 days ago | 0

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Answered
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...

22 days 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

22 days ago | 1

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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')...

23 days 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...

23 days 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...

23 days ago | 0

Answered
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...

25 days ago | 0

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Answered
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...

25 days 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...

26 days 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...

26 days 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 ...

26 days 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...

26 days 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 ...

26 days 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...

27 days 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...

27 days 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...

28 days 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...

29 days 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...

1 month ago | 0

Answered
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...

1 month 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...

1 month 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 ...

1 month ago | 0

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Answered
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...

1 month ago | 1

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