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Dennis


Last seen: 2 meses ago Active since 2018

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  • Introduction to MATLAB Master
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Answered
Is it possible to change the value of a global variable in app designer?
Yes, you can use one matrix for several callbacks and it will keep its values. It will be stored as app property, so you need to...

8 meses ago | 0

| accepted

Answered
what is the error with that code?
You need to pass the FontSize as number and not as string: xlabel('time (sec)','fontsize',18,'fontweight','b'); ...

12 meses ago | 0

Answered
I need to break my while loop with a push of button but i get a error
Short answer: clear all; deletes a. Longer answer: Your immediate problem should be solved just by omitting the 'clear all...

12 meses ago | 0

| accepted

Question


How can i format my uitable using html when it is contained in a parent figure?
Hi, i am trying to format an uitable to have a 2-line header: mytable=uitable(); mytable.ColumnName={'<html><center>This is<b...

alrededor de 1 año ago | 1 answer | 0

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answer

Answered
Loop through multiple EditField controls placed inside the App Designer and get values from them.
If your edit fields have systematic names you can do it like this: for i=1:3 app.(sprintf('EditField%d',i)).Value end Yo...

más de 1 año ago | 0

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Solved


Maximum value in a matrix
Find the maximum value in the given matrix. For example, if A = [1 2 3; 4 7 8; 0 9 1]; then the answer is 9.

más de 1 año ago

Solved


Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

más de 1 año ago

Solved


Add two numbers
Given a and b, return the sum a+b in c.

más de 1 año ago

Solved


Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

más de 1 año ago

Answered
Generating an unknown ammount of Buttons in App Designer
Hi, your code should almost work, you need to remove the preallocation with zeros. You can let your loop run backwards instead:...

alrededor de 2 años ago | 1

Answered
How to fix uicontrol callback error and retrieve the status of a pushbutton from a callback function ?
There are two different types of buttons in MATLAB, push buttons and toggle buttons. The latter actually have the function you d...

alrededor de 2 años ago | 0

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Answered
Undefined function 'mtimes' for input arguments of type 'matlab.ui.control.NumericEditField' error
app.S.Value = (C_ratio)^2*((app.V.Value*N)/P); You forgot the '.Value', the error message tells you that you can not multiply ...

más de 2 años ago | 1

Answered
Edit box in Gui app
Do you get any error messages? You are overwriting the handle of your edit box, thus you use the wrong handle when you try to u...

más de 2 años ago | 0

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Answered
Get Values of uibuttongroup uicontrol checkboxs when i clicked on other uibuttongroup uicontrol pushbutton
You need to pass the handle of your checkboxes to your submitcb to access the values. First add those handles as additional inp...

más de 2 años ago | 0

Answered
Unable to check checkboxes AppDesigner
You need to set the values of your checkbox to true or false, not to 0 or 1. MWE: t=uitable; t.ColumnFormat={'logical'}; t.Co...

más de 2 años ago | 0

Answered
How to save and load App Designer app state in between sessions
You should load your .mat file into a structure, and pass that structure to other functions. S=load('tccworkspace.mat'); You ...

más de 2 años ago | 0

Answered
converting randit to randi
matrix(i,j)=randi(9); Instead of creating single random numbers in a loop maybe consider creating them as vector/matrix. m...

más de 2 años ago | 0

Answered
building a for loop with t = t+1
A few things first: i is often used to increment for loops, but it is completly up to you if you use i, t or something else. ...

más de 2 años ago | 1

| accepted

Answered
convert matrix to vector in a loop
Please check if this works for you: A=randi(100,144,10); %matrix of size (144,10) B=reshape(A',40,36); B=B';

más de 2 años ago | 1

| accepted

Answered
Plotting Negative Values in a Loop
As KSSV already pointed out you need integers as array indices. Additionally i would recommend to use markers to make your data...

más de 2 años ago | 0

Answered
How can I use imellipse on a GUI?
When asking a question you should always include the complete error message. My guess is that your error message tells you that...

más de 2 años ago | 0

Answered
how to get string as output from inputdlg?
inputdlg returns a cell array and not a string. Try data = xlsread(filename,sheet{1},xlRange);

más de 2 años ago | 0

| accepted

Answered
How to retrieve datas from multiples GUIs into a function ?
The difference is where you store your values. The setappdata/getappdata needs an object to store your data, which is provided a...

más de 2 años ago | 0

| accepted

Answered
dealing with checkbox in GUI
Use a loop and uncheck/check them. %create 20 checkboxes for i=20:-1:1 handles.uihandles(i)=uicontrol('style','checkbox...

más de 2 años ago | 0

| accepted

Answered
Using Radio Buttons with Push Button
Try changing switch get(eventdata.uibuttongroup1, 'Tag') to switch get(handles.uibuttongroup1.SelectedObject) And you n...

más de 2 años ago | 0

Answered
Multiple variable generated by one GUI element
Most likely you do not want to store each value in a different variable. Please check Stephen's tutorial to learn more about thi...

más de 2 años ago | 0

| accepted

Answered
How to replace the "files required for your application to run" in app designer
Yes, this can be done. There is a really good blog post about this topic, which can be found here. As stated in the blog you ca...

más de 2 años ago | 0

| accepted

Answered
Matrix dimensions must agree. Error Message appears.
In your function PTFLASH_VLE_PRVDW you define: fL=zeros(1,c); fV=[1,1,1]; next you try to substract fV - fL, which wi...

más de 2 años ago | 1

| accepted

Answered
How to get difference between two time values ?
You can use etime, but you need to convert your strings first. I hope this helps: a=datetime pause(5) b=datetime a=datev...

más de 2 años ago | 0

| accepted

Answered
Undefine function or variable
In general you are more likely to receive an answer if you describe the problem you are facing and include any error messages. I...

más de 2 años ago | 0

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