Undocumented Matlab
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Mex

Multi-threaded Mex

Tips for creating and debugging multi-threaded Mex functions are discussed.

July 18, 2018 4 Comments Read More »

Faster csvwrite/dlmwrite

The speed of the builtin csvwrite, dlmwrite functions can be improved dramatically.

October 3, 2017 5 Comments Read More »

MEX ctrl-c interrupt

An undocumented MEX function can help interrupt running MEX functions.

June 15, 2016 5 Comments Read More »

Better MEX error messages

The default clunky and release-incompatible MEX error messages can be improved using a simple hack.

February 24, 2016 2 Comments Read More »

Undocumented feature list

A list of undocumented MATLAB features can be retrieved. Here's how...

March 19, 2014 4 Comments Read More »

Explicit multi-threading in Matlab part 3

Matlab performance can be improved by employing POSIX threads in C/C++ code.

March 5, 2014 4 Comments Read More »

Serializing/deserializing Matlab data

Matlab does not provide a documented manner to serialize data into a byte stream, but we can do this with some undocumented functionality.

January 22, 2014 22 Comments Read More »

Accessing private object properties

Private properties of Matlab class objects can be accessed (read and write) using some undocumented techniques.

December 18, 2013 2 Comments Read More »

Undocumented Matlab MEX API

Matlab's MEX API contains numerous undocumented functions, that can be extremely useful.

July 24, 2013 6 Comments Read More »

Parsing mlint (Code Analyzer) output

The Matlab Code Analyzer (mlint) has a lot of undocumented functionality just waiting to be used.

April 10, 2013 8 Comments Read More »
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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
  • JCFL (18 hours 29 minutes ago): I was trying the above trick to change the transparency of contour lines and wondering why not all the lines have changed — then I found your post. Thanks and your post saved me.
  • Patrick Fitzgerald (2 days 22 hours ago): Just a heads up to anyone else digging around for help related to this: if you assign BackrgoundColor to a pushbutton-style uicontrol, it seems to prevent you from...
  • Vasiliy (18 days 17 hours ago): Hi Yair, i’m trying to use the MonthChooserPanel class. com.mathworks.mwswing.MJUtilit ies.initJIDE; handles.jPanel = com.jidesoft.combobox.MonthCho oserPanel;...
  • DM (18 days 17 hours ago): Hi Yair, I’m trying to use the MonthChooserPanel class. com.mathworks.mwswing.MJUtilit ies.initJIDE; handles.jPanel = com.jidesoft.combobox.MonthCho oserPanel; [handles.hPanel,...
  • Yair Altman (22 days 10 hours ago): @Alex – thanks, but keep in mind that new functions will only work on the recent Matlab releases. If your code needs to work on older Matlab releases, you could revert to...
  • Alex Churchill (22 days 10 hours ago): I was looking up how to do this exact task today. I was about to hold my nose and use the internal controllib function, when I happened to chance across a slightly newer...
  • Sebastian Hölz (28 days 16 hours ago): I have not investigated this in detail, but I think one way to go in new versions of Matlab (>2019b) might be to use listeners to suitable figure properties, e.g. fig =...
  • Prathep (28 days 19 hours ago): Hi Yair, Thanks for your introduction on Matlab Toostrip. Is there any way to add Matlab toolstrip for uifigures as you have done already for figure?
  • Josh (35 days 2 hours ago): Dear Yair, Small typo; you wrote >>Move lines up or down – CTRL + ALT + UP or DOWN allows you to move selected lines up or down but it’s actually ALT+SHIFT then UP/DOWN...
  • Yair Altman (41 days 20 hours ago): You can try to increase the Java heap memory size in the Matlab preferences (General => Java Heap Memory). Any changes to the settings will only take effect after restarting...
  • Thomas (41 days 22 hours ago): Hello, thanks for sharing! I currently receive the following memory error message when using savezip with a big object (Matlab R2020b, Windows 10). Error using...
  • Yair Altman (45 days 5 hours ago): Yerlan – either use menuItem1.setEnabled(0) or set(menuItem1,'Enabled',0)
  • Manzn (45 days 8 hours ago): Thank you man! you saved me, when there was no more light 😀
  • Yerlan (46 days 13 hours ago): Hello Mr. Altman, how can I disable menu items in the context menu? E.g. when I am trying to do this: menuItems = jmenu.getSubElements; menuItem1 = menuItems(1);...
  • Yair Altman (47 days 5 hours ago): Thanks for the note Eric – you forgot the crucial call to jTable.setLabelTable(labelTabl e) – I added it into your code snippet above.
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