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David K


Last seen: 3 Monate ago Active since 2015

I spend a lot of time in MATLAB, with my focus on signal processing and data analysis.

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Question


NaN value in data tip causes error
I am using dataTipTextRow to create custom data tips for my plot. I have found that when there is a NaN value in the Value field...

4 Monate ago | 0 answers | 0

0

answers

Question


Unable to change default radio button in button group
I am building an app in appdesigner which contains a Radio Button Group. I recently decided to add a new radio button option to ...

9 Monate ago | 1 answer | 0

1

answer

Question


Parfor converting object to double?
I am trying to parallelize some of my code to make it run quicker and ran into a weird error that I get in 2019a but not in 2020...

etwa ein Jahr ago | 1 answer | 0

1

answer

Question


How to parallelize when loading lots of data
I have been struggling to speed up my MATLAB code which loads a number of large data files into custom class objects. My two cla...

etwa ein Jahr ago | 1 answer | 0

1

answer

Question


Major slowdown when clearing objects in the wrong order
I've built a set of custom classes that I use for accessing and analyzing our datasets. I've run into the problem that when I ru...

mehr als ein Jahr ago | 0 answers | 0

0

answers

Question


How to disable title of ButtonGroup
I have an app I've created using App Designer. Included is a Button Group that I would like to Enable and Disable with a checkbo...

mehr als ein Jahr ago | 1 answer | 0

1

answer

Question


Can I use arrows to move Data Tips on scatter plots?
I know that when using the plot function with data tips you can use the arrow keys to move the data tip through the data set. Is...

mehr als ein Jahr ago | 2 answers | 0

2

answers

Question


Path not searching in current directory first
On my path I have a folder called "Other_Code" which contains "@myClass/myClass.m". In the directory I am running from I have a ...

mehr als ein Jahr ago | 0 answers | 0

0

answers

Question


Any way to make a global wrapper code for all callbacks in App Designer?
I am in the process of migrating a GUI I created using GUIDE to App Designer (2019b). In GUIDE, I added code to the main functio...

etwa 2 Jahre ago | 0 answers | 0

0

answers

Question


Add value limits to cells in uitable
I am creating a GUI using the App Designer (2019b). One of the nice features for NumericEditField is that you can define value l...

mehr als 2 Jahre ago | 0 answers | 0

0

answers

Question


Format ToolTip strings in AppDesigner
I am working on migrating a GUI from GUIDE to AppDesigner. In GUIDE, I could format the tooltip text by supplying an HTML string...

mehr als 2 Jahre ago | 1 answer | 0

1

answer

Question


Read text file with multiple rows of fields
I am trying to read in a large text file with a challenging formatting. Instead of one long row of many fields, the file is brok...

mehr als 2 Jahre ago | 1 answer | 0

1

answer

Question


"Error during serialization" when modifying plot created from custom classes
I have been running into the following error in a couple of different situations: Error using scribeccp. (Line 24) Error durin...

fast 3 Jahre ago | 0 answers | 0

0

answers

Question


Error when trying to remove object from plot
I have an axis containing multiple plotted objects, created both from the `scatter` and `plot` commands. If I want to remove one...

mehr als 3 Jahre ago | 0 answers | 0

0

answers

Question


How to handle empty strings with datenum
I have a comma-separated text file I am reading in and parsing using |textscan|. Two of the fields are the date and time of day....

mehr als 4 Jahre ago | 1 answer | 0

1

answer

Question


Is it possible to determine when I last used a toolbox?
It's coming time for me to renew my license, and I have a couple toolboxes that I rarely use, if at all. Is there a way to see w...

etwa 5 Jahre ago | 3 answers | 0

3

answers

Question


Which functions require double precision
I recently got the following error: The input signal X must be a double-precision vector. Now, I understand the error an...

etwa 5 Jahre ago | 1 answer | 0

1

answer

Question


Can I put a try-catch in GUI initialization code?
I am building a GUI using GUIDE in 2016a which I will be compiling and deploying. I want to try to do some global error handling...

etwa 5 Jahre ago | 1 answer | 0

1

answer

Question


Force return from function while debugging
I am debugging a program and would like to return from a subfunction without completing the function. For example, you can write...

mehr als 5 Jahre ago | 1 answer | 0

1

answer

Question


Use individual license on a network
I have an individual license, which allows me to install and use MATLAB for one user on up to four different machines. One of th...

etwa 6 Jahre ago | 1 answer | 0

1

answer

Question


Why does Matlab use 'log' instead of 'ln'?
Okay, I understand that the function for natural logarithm is "log()" and the function for base 10 logarithm is "log10". However...

mehr als 6 Jahre ago | 3 answers | 0

3

answers

Question


Use Parallel Toolbox to debug multiple scripts
I have two different scripts that I would like to debug simultaneously so I can compare their behavior. Is there a way I can use...

fast 7 Jahre ago | 1 answer | 0

1

answer

Question


Why is errorbar whisker length dependent on X?
I am running a simulation in Matlab 2015 which creates data each round, so I am plotting a number of single errorbar series indi...

etwa 7 Jahre ago | 2 answers | 0

2

answers