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...

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...

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

Answered

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...

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

Answered

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...

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

Answered

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...

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

| accepted

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...

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

Answered

How can I replace inline

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

How can I replace inline

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

21 days ago | 0

Answered

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...

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...

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

| accepted

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...

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

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

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')...

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

Answered

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...

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

| accepted

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...

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...

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

| accepted

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...

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

| accepted

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...

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

| accepted

Answered

defining a fitting type

See the "Create Custom Nonlinear Models and Specify Problem Parameters and Independent Variables" and "Use Anonymous Functions t...

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

Answered

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 ...

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

Answered

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...

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

| accepted

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 ...

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

Answered

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...

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

| accepted

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...

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

Answered

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...

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

Answered

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...

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

| accepted

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...

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...

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

Answered

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...

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

Answered

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 ...

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

| accepted

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...

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

| accepted