Answered
After Allocating a Large Variable and Crashing, MATLAB is Forever Slow
Several possibilities spring to mind: # Your antivirus is running wild ( <http://www.mathworks.com/matlabcentral/answers/9256...

12 years ago | 4

Answered
IM2JAVA2D is not available on this platform
*_im2java2d_* is only available on platforms that run Java GUI (Swing); yours doesn't

12 years ago | 0

Answered
How to clear persistent variables?
you can use clear functionName and all the persistent vars in that function will be cleared (set to [])

13 years ago | 10

| accepted

Answered
OOP-Performance problems in accessing large arrays in class properties
This is because you are inadvertently reallocating tens of thousands of elements, 1e4 times, in the following line: ctmp(ind...

13 years ago | 3

Answered
calling java class from external jar
Here's one way to access Java enumerators: msgType = javaMethod('valueOf','java.awt.TrayIcon$MessageType','INFO'); or: ...

13 years ago | 0

Answered
Big Data analysis using Matlab and Database connection, is it possible ?
1. Try to disconnect from the DB every now and then, ensuring that all references are explicitly cleared so that there's no dang...

13 years ago | 0

| accepted

Answered
plot legend -> bad performance
The legend is automatically connected to the axes so that whenever the axes children change (as in deleting/adding plot lines), ...

13 years ago | 0

Answered
Using findjobj in R2013a
You only need to use _findjobj_ without an output (result assignment) value if you want to see an interactive GUI display of all...

13 years ago | 1

Submitted

treeTable - create a sortable table control with collapsible row groups
Create a sortable Java-based tree-table GUI control having collapsible/expandable data row groups

13 years ago | 2505 downloads |

5.0 / 5

Answered
Performance tuning - finding CPU time
The Profiler *DOES* provide detailed information about specific call invocations, but you need to dig a bit in its undocumented ...

13 years ago | 1

Submitted

addLogo - add image to container figure/panel
add the specified image at the specified container position; supports resizing/animated/transparent

13 years ago | 784 downloads |

0.0 / 5

Answered
how to change each cell color in a uitable
This is answered in great detail here: http://undocumentedmatlab.com/blog/uitable-cell-colors/

13 years ago | 8

Answered
Removing uitable cell selection highlight
This is covered (briefly) at the bottom of page 169 of my book...

13 years ago | 1

| accepted

Question

Anyone know what's up with Urs (us) Schwartz?
The venerable us has apparently <http://www.mathworks.com/matlabcentral/newsreader/search_results?dur=all&search_string=authorid...

13 years ago | 2 answers | 0

2

answers

Answered
Good homepage where you can get buy expert help?
Mikkel - I answered your specific GUI/CW question <http://www.mathworks.com/matlabcentral/answers/71078-command-window-output-to...

13 years ago | 1

Answered
Command Window Output to GUI
You can access the CW text programmatically as follows: jDesktop = com.mathworks.mde.desk.MLDesktop.getInstance; jCmdWin...

13 years ago | 6

Answered
MATLAB function "save" and "-V7.3"
Since R2008b, v7.3 compression seems to be done only (and always) for [large?] numeric data, but never for non-numeric data, reg...

13 years ago | 6

Answered
Performance Issue of 'imrotate' in double precision mode
This is a limitation imposed by MathWorks in _imrotate.m_ (subfunction _useIPP_), purportedly because Intel's Performance Primit...

13 years ago | 0

Submitted

JTattoo look-and-feel demo GUI
JTattooDemo demonstrates effects of Look-and-Feel changes (including JTattoo L&F) on GUI controls

13 years ago | 1339 downloads |

5.0 / 5

Submitted

checkVersion - Check for a newer file version on the File Exchange
checkVersion implements an auto-update mechanism to check for a newer version of a utility on FEX

13 years ago | 760 downloads |

5.0 / 5

Question

What are the differences (if any) between Matlab system objects and class objects?
Matlab includes a wide variety of System Objects, that seem to be standard Matlab objects (typically singletons) which derive fr...

13 years ago | 3 answers | 6

3

answers

Answered
refreshing legend when Visible is set on/off
I explained how to do this here: <http://undocumentedmatlab.com/blog/legend-semi-documented-feature/#comment-70611> Here is ...

13 years ago | 1

Answered
hggroup of text() objects and contextmenu
Oleg, you can simply reuse the |localGetNonScribeScribeContextMenu()| subfunction in _%matlabroot/toolbox/matlab/graph2d/private...

13 years ago | 2

Answered
Does checkcode return the status of the "Message indicator box", i.e. red/orange/green ?
I must admit that I have it on my articles TODO list for quite some time... Here's something to get you started: http://www.m...

14 years ago | 3

| accepted

Answered
uitree & uitreenode in R2011 & R2012
They still work in 2012 More on this: * <http://undocumentedmatlab.com/blog/uitree/> * <http://undocumentedmatlab.com/blo...

14 years ago | 1

Answered
Experiences with release 2012b
Not less importantly than the documentation layout, many online doc pages have changed URLs, and the old URLs no longer work. I ...

14 years ago | 7

Answered
Experiences with release 2012b
I must say that I expected more from ML8 than a Desktop facelift. Yes, I know it's anything but "simple", and I am aware of the ...

14 years ago | 15

Answered
MATLAB as Java IDE
Take a look at MatClipse, a Matlab plugin for Eclipse: <http://code.google.com/a/eclipselabs.org/p/matclipse/>

14 years ago | 0

Answered
Datatips don't disappear
I also see it from time to time in the editor when I hover the mouse on the ellipsis mark (...) signifying folded code: If the d...

14 years ago | 0

Answered
can we convert com.mathworks.toolbox.javabuilder.MWArray to java.lang.object?
Every Java object, whatever its class is, is also automatically a java.lang.Object, since Object is the top superclass of all Ja...

14 years ago | 1