Answered

I have a matrix problem to solve; A = (:,1) and B = (:,1) and C(:,1) matrixes. This I need in the tensor form like shown in the figure. How to calculate the determinant.

Use the zeros and size functions to generate the zeros row by row. Once you have the matrix you can use the det function to calc...

I have a matrix problem to solve; A = (:,1) and B = (:,1) and C(:,1) matrixes. This I need in the tensor form like shown in the figure. How to calculate the determinant.

Use the zeros and size functions to generate the zeros row by row. Once you have the matrix you can use the det function to calc...

8 months ago | 0

Answered

Coding practices to simplify complex functions

I would suggest using a struct (or Name,Value pairs) for functions with more than 4 inputs. The attached function allows parsing...

Coding practices to simplify complex functions

I would suggest using a struct (or Name,Value pairs) for functions with more than 4 inputs. The attached function allows parsing...

8 months ago | 0

Answered

I have algorithm I have estimated the data pretty well , but I 'm not able to forecast it .

As the error message is telling you, the problem is here; error('Forecast:TooFewSamples','The data should contain at least %d ...

I have algorithm I have estimated the data pretty well , but I 'm not able to forecast it .

As the error message is telling you, the problem is here; error('Forecast:TooFewSamples','The data should contain at least %d ...

8 months ago | 0

Answered

AppDesigner in headless mode (without GUI)

I'm not aware of a way to use an AppDesigner app without the app, so I doubt you will like my suggestion: You should extract th...

AppDesigner in headless mode (without GUI)

I'm not aware of a way to use an AppDesigner app without the app, so I doubt you will like my suggestion: You should extract th...

8 months ago | 2

Answered

install add-on

Windows is picky with spaces in the path, so you need to add double quotes. The command below might do the trick. cd "C:\Pr...

install add-on

Windows is picky with spaces in the path, so you need to add double quotes. The command below might do the trick. cd "C:\Pr...

9 months ago | 0

Answered

Help, my matlab mex file format is weird

When I download it, it isn't a plain text file. Often when people attempt to download a file from github, they save the web v...

Help, my matlab mex file format is weird

When I download it, it isn't a plain text file. Often when people attempt to download a file from github, they save the web v...

9 months ago | 0

Answered

How to plot 4d bar with 4 column vectors?

For this small number of elements, I would try plot3, with the 4th dimension replaced by color. Once you get to many more dat...

How to plot 4d bar with 4 column vectors?

For this small number of elements, I would try plot3, with the 4th dimension replaced by color. Once you get to many more dat...

9 months ago | 0

Answered

Why MATLAB R2023b requires macOS 12.6? Would 12.3 work?

Each Matlab release has a range of OS versions that are officially supported. This is only the official list. It is very well po...

Why MATLAB R2023b requires macOS 12.6? Would 12.3 work?

Each Matlab release has a range of OS versions that are officially supported. This is only the official list. It is very well po...

9 months ago | 0

Answered

Transforming workspace into table using script in MATLAB

Since it is a variable in the main workspace, it is already available in scripts. However, you should not use scripts for serio...

Transforming workspace into table using script in MATLAB

Since it is a variable in the main workspace, it is already available in scripts. However, you should not use scripts for serio...

9 months ago | 0

| accepted

Answered

How to increase speed of a multi-vector calculation

The iterations are not interdependent, so you should be able to use a parfor loop instead. You could consider performing thos...

How to increase speed of a multi-vector calculation

The iterations are not interdependent, so you should be able to use a parfor loop instead. You could consider performing thos...

9 months ago | 0

Answered

Setting the editor (not Live editor) text and background colors from code

I always run MATLAB Schemer after I install Matlab. You can dig into the code to find the actual field you can use. It might no...

Setting the editor (not Live editor) text and background colors from code

I always run MATLAB Schemer after I install Matlab. You can dig into the code to find the actual field you can use. It might no...

9 months ago | 1

Answered

My datastructure only contains the last subjects information. So in my for loop the structure is getting overwritten. How can I change this?

Your last line overwrite the struct every iteration. Using indexing will create an array: Datastructure(i) = Input_Data( .....

My datastructure only contains the last subjects information. So in my for loop the structure is getting overwritten. How can I change this?

Your last line overwrite the struct every iteration. Using indexing will create an array: Datastructure(i) = Input_Data( .....

10 months ago | 0

Answered

Insert array into larger array with unknown number of dimensions

It will probably hurt performance, but you could calculate the linear indices with sub2ind. Alternatively, you can use this tri...

Insert array into larger array with unknown number of dimensions

It will probably hurt performance, but you could calculate the linear indices with sub2ind. Alternatively, you can use this tri...

11 months ago | 1

| accepted

Answered

precision of string conversion using string()

Let's first replicate what you show: my_fun([],@string) my_fun([pi]) my_fun([pi 1]) my_fun([pi 100]) my_fun([pi 127]) my_f...

precision of string conversion using string()

Let's first replicate what you show: my_fun([],@string) my_fun([pi]) my_fun([pi 1]) my_fun([pi 100]) my_fun([pi 127]) my_f...

11 months ago | 1

| accepted

Answered

Change colors (of groups) in scatter plot

As the documentation explains, you can set the colormap: a = [37 98 1; 35 94 1; 33 97 1; ...

Change colors (of groups) in scatter plot

As the documentation explains, you can set the colormap: a = [37 98 1; 35 94 1; 33 97 1; ...

11 months ago | 1

| accepted

Answered

Error using matlab.internal.math.interp1, Sample points must be unique.

interp1 is not intended to fit equations. There are other tools to do that. If you insist on using this function, you will eithe...

Error using matlab.internal.math.interp1, Sample points must be unique.

interp1 is not intended to fit equations. There are other tools to do that. If you insist on using this function, you will eithe...

11 months ago | 0

Answered

Help creating a function

You need to call your function the same way you call builtin functions. If you use the green triangle, your function will be run...

Help creating a function

You need to call your function the same way you call builtin functions. If you use the green triangle, your function will be run...

11 months ago | 0

| accepted

Answered

How to use pdist2 command for distance calculation?

I don't expect the performance to be great, but you can use the option of specifying the distance calculation function. D = pdi...

How to use pdist2 command for distance calculation?

I don't expect the performance to be great, but you can use the option of specifying the distance calculation function. D = pdi...

11 months ago | 0

Answered

How to calculate the dice similarity coefficient

Let's first see what you have in those mat files: s1=load('prediction.mat') s2=load('groundtruth.mat') So you have two equal-...

How to calculate the dice similarity coefficient

Let's first see what you have in those mat files: s1=load('prediction.mat') s2=load('groundtruth.mat') So you have two equal-...

11 months ago | 0

| accepted

Answered

Could a Phd uses a license Trial in a commercial company?

You should read the license agreement for a trial license. Since the PhD is in this case working for a commercial company, the ...

Could a Phd uses a license Trial in a commercial company?

You should read the license agreement for a trial license. Since the PhD is in this case working for a commercial company, the ...

12 months ago | 0

Answered

How to determine frequency of a specific matrix row in MATLAB?

Let's first create the same variables William created: N=10000; A=randi(9,N,1); B=randi(9,N,1); C=randi(9,N,1); X=[A,B,C]; W...

How to determine frequency of a specific matrix row in MATLAB?

Let's first create the same variables William created: N=10000; A=randi(9,N,1); B=randi(9,N,1); C=randi(9,N,1); X=[A,B,C]; W...

12 months ago | 1

Answered

Repeated Measures Bland-Altman

Your questions is a statistics question, not a Matlab question. But no, this is not appropriate, since the presumtion underlyin...

Repeated Measures Bland-Altman

Your questions is a statistics question, not a Matlab question. But no, this is not appropriate, since the presumtion underlyin...

12 months ago | 1

| accepted

Answered

calculating and plotting 95% confidence intervals

A 95% confidence interval means 2 standard deviations on either side. So you simply need to insert *2 in your code.

calculating and plotting 95% confidence intervals

A 95% confidence interval means 2 standard deviations on either side. So you simply need to insert *2 in your code.

12 months ago | 0

| accepted

Answered

how can I plot the .jpg into a different part of an axis

You can use the image function to insert an image object in an axes. Below you see an example. As you can see, you will have to...

how can I plot the .jpg into a different part of an axis

You can use the image function to insert an image object in an axes. Below you see an example. As you can see, you will have to...

12 months ago | 0

Answered

Is it possible to delete "output argument warning"?

Why are you printing an error message with fprintf instead of throwing an exception with error function? Also, I personally pre...

Is it possible to delete "output argument warning"?

Why are you printing an error message with fprintf instead of throwing an exception with error function? Also, I personally pre...

1 year ago | 0

| accepted

Answered

xline with 1x3 array for the lable

The difference is having a scalar struct with an array field, or a struct array with scalar fields. Dot indexing the latter will...

xline with 1x3 array for the lable

The difference is having a scalar struct with an array field, or a struct array with scalar fields. Dot indexing the latter will...

1 year ago | 0

Answered

Download file from website without url

What you need to do, is use the inspection tools of your browser to track the requests your browser makes when downloading a fil...

Download file from website without url

What you need to do, is use the inspection tools of your browser to track the requests your browser makes when downloading a fil...

1 year ago | 0

| accepted

Answered

Have you encountered different results using "parfor" vs. "for" loop using Matlab 2019b

Put simply, each worker in the parallel pool inherits the workspace from before the loop. So if you put your rng before the loo...

Have you encountered different results using "parfor" vs. "for" loop using Matlab 2019b

Put simply, each worker in the parallel pool inherits the workspace from before the loop. So if you put your rng before the loo...

1 year ago | 0

Answered

is it possible to use multiple functions in cellfun

This is only possible if these functions have an output. But the more important question is why you want to use cellfun for a m...

is it possible to use multiple functions in cellfun

This is only possible if these functions have an output. But the more important question is why you want to use cellfun for a m...

1 year ago | 0

| accepted

Answered

Matlab update to 1.4.2.1?

That is not an update to Matlab itself (which Mathworks will always write all caps). What you see is an update to a File Exchang...

Matlab update to 1.4.2.1?

That is not an update to Matlab itself (which Mathworks will always write all caps). What you see is an update to a File Exchang...

1 year ago | 1

| accepted