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Kristoffer Walker


Last seen: 2 days ago |  Active since 2018

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Answered
Fastest Way of Opening and Reading .csv Files (Currently using xlsread)
In my experience, the absolute fastest method is textscan. Here is a benchmark to support my claim using a 3.6 GB CSV file with...

3 months ago | 0

Answered
Why such a fuss with ndgrid and meshgrid issues?
Thank you everyone for your input. I will surely look back on this post in the future for the multiple, helpful contributions.

5 months ago | 0

| accepted

Question


Why is navigation tool menu non-responsive in AppDesigner app?
Hello, I have an app I created in AppDesigner. It has 3 axes in the window. I plot images using pcolor in two of these axes. ...

5 months ago | 2 answers | 0

2

answers

Question


Why such a fuss with ndgrid and meshgrid issues?
Folks, In the world of artificial intelligence and more intelligent programming, I would like to see more intelligence put into...

5 months ago | 5 answers | 0

5

answers

Answered
How can I use ginput in app designer?
The workaround for lack of ginput support for UIAxes is alarming. I've been constantly frustrated by this lack of attention, an...

6 months ago | 0

Question


Why do AppDesigner drop-down menus dissapear?
I have an AppDesigner app. It has many UI components on it. I am not using the grid layout for containment. It has been worki...

1 year ago | 0 answers | 0

0

answers

Question


Best practice for saving and loading axes children from and to an app designer axes?
Hello, I have an app created in app designer. It has 3 GUI windows. The master window declares a public data container, which...

2 years ago | 1 answer | 0

1

answer

Question


rng usability missing seed functionality
Folks, It looks like using "seeds" is being considered "old fashioned" in Matlab 2022b, and there is a warning about it suggest...

2 years ago | 1 answer | 0

1

answer

Question


App Designer in 2022b reverses menu bar in app designed in 2020a!
Hi, I just installed 2022b. Upon opening a app made in app designer 2020a, I got a warning message saying it was automatically...

2 years ago | 0 answers | 0

0

answers

Question


How to fix rendering issue in AppDesigner axes?
Folks, I am trying to use: set(0,'DefaultFigureRenderer','opengl') to fix an issue I have in AppDesigner. The axes legend sh...

2 years ago | 0 answers | 0

0

answers

Question


Axes automatically change size and get mis-aligned in App Designer
Hello Matlab Community! Happy New Year! Hope you all have a productive year coding your hearts away to solve important problem...

4 years ago | 1 answer | 0

1

answer

Question


How do I assign a different category list to each row in the same column using UITable in AppDesigner?
Hello, One of the issues I am facing is that I'm trying to sort a list of categories depending on each row in a UITable. It se...

4 years ago | 0 answers | 1

0

answers

Question


How to detect the calling axes from context menu using AppDesigner
Hello Folks, I hope you are all staying safe out there. I am in the middle of a development project. So I have been posting s...

4 years ago | 1 answer | 0

1

answer

Answered
App Designer: How to open a second GUI or a new window with panels, lamps, edit fields, etc. by a ButtonPush callback ?
This should get you 99% of the way there. https://www.mathworks.com/help/matlab/creating_guis/creating-multiwindow-apps-in-app-...

4 years ago | 0

Answered
Check if GUI is open
None of the above seems to work for me when I am trying to detect if a GUI created from AppDesigner is open. Does anyone know h...

4 years ago | 0

Question


How to orient a vertical depth scrollbar so that Max Depth value is at the bottom
Folks, Is there a simple way in AppDesiger to have the option to "reverse" the orientation property of a scrollbar so that Min/...

4 years ago | 0 answers | 0

0

answers

Answered
How to smooth 2d matrix
Use the ":" operator to convert the matrix to a vector, use smooth() to smooth, and return the content to the original matrix fo...

4 years ago | 0

Question


Why are there random offsets in the alignment of my App Designer axes?
Folks, When I click "Run" in AppDesigner, my single UI window that comes up has random differences in the vertical height and v...

4 years ago | 1 answer | 0

1

answer

Question


App Designer: "Value" element now a string
Folks, Is there any replacement variable for the "Value" in a dropdown UI element that enables me to get the index of the array...

4 years ago | 1 answer | 0

1

answer

Question


How to disable the axes interactivity tool popups?
Folks, I am wondering how I might disable being able to have the automated navigation popup at the upper right of axes pop up w...

4 years ago | 1 answer | 0

1

answer

Question


AppDesigner future question: Menu Bar and Context Menus
Matlab Designers, I created an app yesterday in AppDesigner and loved it, much more so than GUIDE. My understanding is that Me...

5 years ago | 3 answers | 0

3

answers

Answered
Previously accessible file is now inaccessible.
I have the same issue. All I did was finish my AppDesigner app, then move the app and its dependencies into a new subdirectory ...

5 years ago | 0

Answered
Environment visible to timer callback function disppears after first iteration
I was able to find a solution that works, but I do not understand why. Changing ExecutionMode to FixedSpacing fixed everything....

5 years ago | 0

Question


Environment visible to timer callback function disppears after first iteration
Folks, I am fairly new to the timer object and its use. I have a timer GUI callback tied to a checkbox GUI element that looks ...

5 years ago | 1 answer | 0

1

answer

Answered
How can set colormap for below matirx?
Amir, Look into "caxis" and "colormap" functions. Basically, to manipulate the color map (so that it highlights different pixe...

5 years ago | 0

Question


Problem with "dirty" GUI configuration
Folks, I have developed a large GUI project using GUIDE. It is too large to convert to the new App Developer method of develop...

5 years ago | 1 answer | 0

1

answer

Answered
How do I use pipes with a system() call using ssh? Parsing issue?
Folks, I figured out my issue. This works. system('ssh user@domain "/bin/ps -afe | /bin/grep SearchString | /bin/awk ''{print...

5 years ago | 1

| accepted

Question


How do I use pipes with a system() call using ssh? Parsing issue?
Folks, I am having difficulty, I believe with parsing, of a string that I am using to make a system call on my Windows 10 syste...

5 years ago | 2 answers | 0

2

answers

Question


Launching a thread that effectively pushes a button in your GUI periodically
Folks, I am an experienced GUIDE user. But I am still a beginner in manual GUI design. I am trying to implement a callback th...

5 years ago | 1 answer | 0

1

answer

Question


What does @(x,y)myFunction mean?
Folks, Could someone please point me to documentation that explains what the "@(x,y)" means in the below code? @(x,y)disp('Hel...

5 years ago | 1 answer | 0

1

answer

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