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Technical articles

Technical articles

Undocumented Profiler options part 3

An undocumented feature of the Matlab Profiler can report call history timeline – part 3 of series.

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September 26, 2012 4 Comments

Undocumented Profiler options part 2

Several undocumented features of the Matlab Profiler can make it much more useful – part 2 of series.

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September 19, 2012 1 Comment

Matlab installation take 2

A list of suggested config changes to the default Matlab installation is detailed.

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September 12, 2012 32 Comments

File deletion memory leaks, performance

Matlab’s delete function leaks memory and is also slower than the equivalent Java function.

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September 5, 2012 8 Comments

Pause for the better

Java’s thread sleep() function is much more accurate than Matlab’s pause() function.

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August 29, 2012 17 Comments

Speeding up compiled apps startup

The MCR_CACHE_ROOT environment variable can reportedly help to speed-up deployed Matlab executables.

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August 22, 2012 32 Comments

ScreenCapture utility

The ScreenCapture utility uses purely-documented Matlab for capturing a screen region as an image from within Matlab.

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August 15, 2012 35 Comments

Bold color text in the Command Window

Matlab Command Window text can be formatted *bold* since R2011b.

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August 8, 2012 2 Comments

xlswrite for Mac, Linux

Several Matlab utilities enable reading/writing spreadsheet data (including XLS files) in Macs, Linux.

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August 2, 2012 9 Comments

Splash window for deployed applications

Deployed (compiled) Matlab applications take a long time to load. I present a splash window that loads immadiately, solving this problem.

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July 26, 2012 No Comments

Waiting for asynchronous events

The Matlab waitfor function can be used to wait for asynchronous Java/ActiveX events, as well as with timeouts.

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July 18, 2012 33 Comments

Trapping warnings efficiently

warnings can be trapped in a try-catch block just like regular errors. This articles explains how.

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July 11, 2012 12 Comments

Using Groovy in Matlab

Groovy code can seamlessly be run from within Matlab.

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July 4, 2012 8 Comments

Multi-line uitable column headers

Matlab uitables can present long column headers in multiple lines, for improved readability.

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June 27, 2012 21 Comments

The Java import directive

The import function can be used to clarify Java code used in Matlab.

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June 13, 2012 No Comments

Undocumented scatter plot jitter

Matlab’s scatter plot can automatically jitter data to enable better visualization of distribution density.

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June 6, 2012 4 Comments

Internal Matlab memory optimizations

Copy-on-write and in-place data manipulations are very useful Matlab performance improvement techniques.

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May 30, 2012 7 Comments

Array resizing performance

Several alternatives are explored for dynamic array growth performance in Matlab loops.

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May 23, 2012 7 Comments

Preallocation performance

Preallocation is a standard Matlab speedup technique. Still, it has several undocumented aspects.

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May 16, 2012 30 Comments

Customizing menu items part 3

Matlab menu items can easily display custom icons, using just a tiny bit of Java magic powder.

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May 9, 2012 39 Comments

Customizing menu items part 2

Matlab menu items can be customized in a variety of useful ways using their underlying Java object.

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May 2, 2012 14 Comments

Customizing menu items part 1

Matlab menus can be customized in a variety of undocumented manners – first article of a series.

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April 25, 2012 6 Comments

Setting axes tick labels format

Matlab plot axes ticks can be customized in a way that will automatically update whenever the tick values change.

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April 18, 2012 18 Comments

Specialized Matlab plots

The new MathWorks Plot Gallery provides access to some plotting examples on the File Exchange. Numerous others are available, extending the customizability of Matlab graphics.

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April 11, 2012 5 Comments

Spy Easter egg take 2

The default spy Easter-egg image in the spy function has recently changed.

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April 4, 2012 6 Comments
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Recent Posts

Speeding-up builtin Matlab functions – part 3

Improving graphics interactivity

Interesting Matlab puzzle – analysis

Interesting Matlab puzzle

Undocumented plot marker types

Matlab toolstrip – part 9 (popup figures)

Matlab toolstrip – part 8 (galleries)

Matlab toolstrip – part 7 (selection controls)

Matlab toolstrip – part 6 (complex controls)

Matlab toolstrip – part 5 (icons)

Matlab toolstrip – part 4 (control customization)

Reverting axes controls in figure toolbar

Matlab toolstrip – part 3 (basic customization)

Matlab toolstrip – part 2 (ToolGroup App)

Matlab toolstrip – part 1

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Recent Comments
  • Yair Altman (1 day 8 hours ago): Robot only runs when you tell it to run a command such as keyPress. If you don’t tell it to run a command, it uses no CPU, so there’s no need to remove the Robot...
  • Eric (1 day 19 hours ago): Hey @Kevin, can you share your code about create group of figures in the AppContainer? The container of multiples uifigures could be an amazing improvement over AppDesigner and its...
  • Elsa Smith (2 days 10 hours ago): I recently used java.awt.Robot to perform GUI testing on MATLAB and found it to be an extremely easy and useful way to control mouse movements.
  • Elsa Smith (2 days 10 hours ago): I’m suspecting that the slow performance of my GUI may be due to the use of java.awt.Robot. Is there a way to cancel/stop/remove the robot after it has been created, or is...
  • Michelle Kline (3 days 3 hours ago): *edit* tip about fopen(), not about fwrite(). ‘Wb’ vs. ‘wb’
  • Michelle Kline (3 days 3 hours ago): Thank you, Yair! With this previously-unknown-to-me tip about fwrite() performance, you have saved me literally hours of processing time. Michelle Kline Department of...
  • Alessandro Beda (15 days 15 hours ago): I found what I think is a bug related to this (tested in R2022 and R2023a). If I add a “ButtonDownFcn” to the plots (see example below), then the modified...
  • Nicholas (17 days 6 hours ago): Yair, Changing the desktop help options did not solve the issue. Though, it’s unclear how I could change these options in the Runtime, if that’s what you meant? I should...
  • Yair Altman (21 days 1 hour ago): @Francisco – this is one of those cases where you should ask MathWorks support. After all, you’re trying to use a supported Matlab functionality when you encountered...
  • Francisco Campos (21 days 13 hours ago): Hello, thanks for all your work that has been immensely useful for those working in the Matlab environment. I have been trying to replace matlabcontrol with the official...
  • Yair Altman (25 days 13 hours ago): Kei – this is possible, I believe that I saw this ability somewhere, a few years ago. I don’t remember exactly where, it will require a bit of research, but...
  • Kei (25 days 16 hours ago): Hello Yair Thank you for this great article. I would like to freeze first two columns in uitable. Do you know if such option is available? Since looks like this option is not available...
  • Andrés Aguilar (29 days 3 hours ago): Hello, has anyone tried to change the language of the DateComboBox? For example English -> French ————&# 8212;—- January -> Janvier April...
  • Yair Altman (38 days 1 hour ago): I posted my treeTable utility 10 years ago for anyone to use freely, on an as-is basis, without any warranty, updates or support. If you need any customization or assistance...
  • JY (38 days 2 hours ago): Yair, could you respond to this question please? I’m also finding it difficult to implement such a multi-hierarchy table. Thanks
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