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**Feeds**

Question

app designer not saving or closing after computer sleep

I found that, everytime my computer goes to sleep (or hibernate) and wakes up again, the app designer that was opened previousl...

nästan 3 år ago | 1 answer | 0

### 1

answerQuestion

where do I find web server app product?

I started matlab installer 2021b, browsed through all the packages/toolboxes, but couldn't find the Matlab web server app produ...

nästan 3 år ago | 1 answer | 0

### 1

answerQuestion

"cpselect.m" excluded from packaging

I got this message in "PackagingLog.html" when trying to package an application Excluded "C:/Program Files/MATLAB/R2019b/toolbo...

mer än 3 år ago | 1 answer | 0

### 1

answerQuestion

enumerate all possible combinations of an input space

for example I have 3 categorical variable, X1 can be 'A,B,or C', X2 can be 'A or D', X3 can be 'E or F', so there can be 3X2X2 d...

mer än 3 år ago | 1 answer | 0

### 1

answerQuestion

ROI of a ring area?

How do I define an ROI of a ring area, i.e, a big cirle and small cirle inside, and I want to select the area in between. Do I ...

mer än 3 år ago | 1 answer | 0

### 1

answerQuestion

Overlay multiple images in one axes with individual transparency adjustment?

I have 3 or more images of the same size to be overlaid, each is associated with a sliding bar for transparency (0-1) adjustment...

nästan 4 år ago | 1 answer | 0

### 1

answerQuestion

find the std of each parameter after lsqlin

I'm using x = lsqlin(C,d,A,b,Aeq,beq,lb,ub) to Solve a constrained linear least-squares problem. After that, how do I find the ...

ungefär 4 år ago | 1 answer | 0

### 1

answerQuestion

Overlay two images in one axes?

I have two images of the same object, but with different resolutions (and sizes). I want to show the high resolution image in...

mer än 4 år ago | 2 answers | 0

### 2

answersI have 10 rows and four columns in variable two. I want to write one row in one cell, 2nd row in 2nd cell, 3rd row in 3rd cell and so on into an Excel file using Matlab. How can I do this?

use num2str() to convert your 10X4 numeric matrix into 10 strings. Then use xlswrite() to write string into Excel cells. Here'...

nästan 5 år ago | 0

| accepted

How to add constraint with condtions using fmincon?

Ask yourself 3 question: How many vairable? how many constraints? and then how to write A and b. Now you are saying L is a know...

nästan 5 år ago | 1

How to add constraint with condtions using fmincon?

Your constraint could be written as: x-y < 1/(a<b)-1 when a<b, a<b=1, so, 1/(a<b)-1=0 when a>=b, a<b=0, so, 1/(a<b)-1=Inf, i...

nästan 5 år ago | 1

| accepted

Question

Error using function "drawassisted"

I copy and paste the example code below and got errors when testing drawassisted. Any ideas? im = imread('peppers.png'); im...

nästan 5 år ago | 0 answers | 0

### 0

answersQuestion

How to add uibuttongroup to a toolbar

I want to add 3 toggle buttons to the toolbar. They are exclusive, i.e., only one of them should be pressed. It is easy to cre...

nästan 5 år ago | 1 answer | 0

### 1

answerSort a structure by the date field

It's easier to handle it in table: T=struct2table(examplestruct); sort(T.date)

ungefär 5 år ago | 0

how to write series of multiple non-linear constraints for optimization using fmincon in MATLAB?

You have 2n parameters, named X1,X2...Xn(for phi) and Xn+1...X2n (for tau). You need to write the constraints in the vectorized...

ungefär 5 år ago | 0

| accepted

Assigning Cell Arrays to Nested Structures within Structure array with Same Dimensions (Error: "Scalar structure required for this assignment")

I don't know how your struct is initialized. It should work. %initialize outputOfCefllfun{1,1}=magic(5); outputOfCefllfun{...

ungefär 5 år ago | 0

Generating an unknown ammount of Buttons in App Designer

You need to remove the line: UniButton = zeros(length(allKeys)); In the callback function, you can retreive source.Text ...

ungefär 5 år ago | 1

| accepted

How to append elements into a 2D cell array

Don't use "end", because it keeps getting larger when you append. Need to reset it in between the two loops. try below .........

mer än 5 år ago | 0

| accepted

Question

How to add a scale bar on an image that will changes automatically with zoom in/out

Given an microscopy image, I want to add a scale bar on the bottom left or right corner of the image. This is not hard to do. ...

mer än 5 år ago | 1 answer | 0

### 1

answerQuestion

how to fetch splite3 blob data

sqlite() and fetch() function only works for one of these data types: double, int64, or char, But not for blob binary data chunk...

mer än 5 år ago | 1 answer | 0

### 1

answerHow to read multiple excel files with different names

you can use this commend to select multiple files from the same folder.. [files,path]=uigetfile('*.xlsx','multiselect','on') a...

nästan 6 år ago | 1

Question

datastore for large structured data

There are Datastores for tabular text files, spreadsheet files, image files, etc. What if my data is a very large binary file, ...

nästan 6 år ago | 1 answer | 0

### 1

answerQuestion

zoom tools in an image in GUI axes

I want to show an image in an gui axes and enable the zoom in(out) functionalities of the image using the mouse, display the (X,...

nästan 6 år ago | 1 answer | 0

### 1

answerQuestion

complied standalone app failed to include toolbox functions

I made a gui, running perfectly in matlab enviorment v2017a. Then I complied it into a standalone application. But it failed t...

mer än 6 år ago | 1 answer | 0

### 1

answerQuestion

Question about the CVmodels generated from regression learner app in machine learning toolbox?

In the regression learner, one can choose the "cross validation" option (i.e., 5 fold) to generate a model and use that model to...

ungefär 7 år ago | 1 answer | 0

### 1

answerhow do i rename or remove a sheet from an excel spreadsheet using matlab

https://www.mathworks.com/matlabcentral/answers/215703-changing-the-name-of-the-sheet-in-excel

mer än 7 år ago | 0

How to find occurrences of a vector of strings in a cell string.

cs=[{'A1'},{'A2'},{'A3'},{'B1'},{'B8'}]; X=[{'A1'},{'B8'}]; find(ismember(cs,X)); ans: 1 5

mer än 7 år ago | 0

| accepted

How to use data from base workspace in app designer application

initialize your EditFields using evalin(), such as: app.EditField1.Value=evalin('base','myvar1'); app.EditField2.Value=evalin(...

mer än 7 år ago | 3

| accepted

Question

How to change the color of "partial" text in gui static text

For example, I want to display a string of 'ABCDE' in the static text box, and want to highlight C with red color or bold font. ...

mer än 7 år ago | 1 answer | 0

### 1

answerCalculus Matlab two variables

Try this, using fmincon(), to solve the min problem x0=[1,1]; Aeq=[8,3]; beq=24; lb=[1,1]; ub=[4,10]; fun=@(x)4+x(1)+x...

mer än 7 år ago | 1