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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 7 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 10 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 (11 days 14 hours ago): @Veronica – you are using the new version of uitree, which uses HTML-based uifigures, and my post was about the Java-based uitree which uses legacy Matlab figures. For...
  • Veronica Taurino (11 days 14 hours ago): >> [txt1,txt2] ans = ‘abrakadabra’
  • Veronica Taurino (11 days 15 hours ago): Hello, I am just trying to change the uitree node name as you suggested: txt1 = 'abra'; txt2 = 'kadabra'; node.setName([txt1,txt2]); >> "Unrecognized method, property, or...
  • Yair Altman (14 days 14 hours ago): The version of JGraph that you downloaded uses a newer version of Java (11) than the one that Matlab supports (8). You need to either (1) find an earlier version of JGraph that...
  • mrv (14 days 19 hours ago): hello, I used MATLAB 2019b update9, I have add jgraphx.jar to javaclassapth, and restart matlab, but still got errors below: Warning: A Java exception occurred trying to load the...
  • xuejie wu (38 days 15 hours ago): Hi: I’m wondering if i can add my customized section or tab ?
  • Yair Altman (50 days 7 hours ago): @Sagar – use the view(az,el) function to rotate the 3D axes.
  • Sagar Chawla (50 days 7 hours ago): I want to know how to change the x-axis to the z-axis. I mean the position. Like if there is a 3d animated graph then how to change position of the axis. X-axis in place of...
  • Ren (50 days 7 hours ago): I noticed that xlsread will create a hidden and never-dying special server that always has priority when actxGetRunningServer is called. So this cause a problem that no matter how many...
  • Ben Abbott (53 days 22 hours ago): Thanks Yair, it was the second. I didn’t not include the drawnow ()
  • Yair Altman (54 days 1 hour ago): @Ben – it looks perfectly ok (with color gradient and all) on my R2022a… Perhaps you missed some of the steps (e.g. setting the ColorBinding to 'interpolated') or...
  • Ben Abbott (54 days 2 hours ago): The graded color is not working for me using R2021a. The plot “HG2 plot line color, transparency gradient” looks exactly like “Transparent HG2 plot...
  • Yair Altman (77 days 4 hours ago): Oliver – you probably forgot to update hMarkers.FaceColorType to ‘truecoloralpha‘: x=1:10; y=10*x; figure; hLine = plot(x,y,'o-'); drawnow...
  • Oliver (77 days 5 hours ago): This seems to have been disabled in the most recent version of Matlab (R2021b). When I use this method the hMarker.FaceColorData does change, but the markers are not made...
  • Yair Altman (96 days 2 hours ago): @Tim – the new uidatepicker() function only works with web-based figures (created using the uifigure() function or App Designer); it is not available on the legacy...
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