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Technical articles

Technical articles

Additional license data

Additional meta-data about installed toolboxes can be retrieved in Matlab.

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February 15, 2017 6 Comments

Parsing XML strings

Matlab’s xmlread function cannot process XML data directly, but this can easily be overcome.

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February 1, 2017 8 Comments

Quirks with parfor vs. for

Parallelizing loops with Matlab’s parfor might generate unexpected results. Users beware!

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January 5, 2017 7 Comments

Checking status of warning messages in MEX

Undocumented Mex functions can be used to extract the state of Matlab warnings in run-time.

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December 21, 2016 No Comments

Password & spinner controls in Matlab GUI

Password fields and spinner controls can easily be embedded in Matlab GUIs.

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December 14, 2016 4 Comments

Sending email/text messages from Matlab

Sending emails and SMS (text) messages from Matlab is easy, once you know a few quirks.

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December 7, 2016 6 Comments

Afterthoughts on implicit expansion

The new implicit expansion feature of Matlab R2016b can break user code in unexpected ways.

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November 30, 2016 12 Comments

Speeding up Matlab-JDBC SQL queries

Fetching SQL ResultSet data from JDBC into Matlab can be made significantly faster.

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November 16, 2016 6 Comments

Working with non-standard DPI displays

Matlab uses logical (scaled) pixel positions. With high-DPI displays, this might cause problems, but it is easy to retrieve the physical (unscaled) pixel values.

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November 9, 2016 6 Comments

uigetfile/uiputfile customizations

A file-selector dialog window that includes an integrated preview panel is shown and explained.

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November 3, 2016 8 Comments

Icon images & text in Matlab uicontrols

HTML can be used to add image icons to Matlab listbox and popup (drop-down) controls.

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September 28, 2016 6 Comments

Aligning uicontrol contents

Matlab uicontrols can often be customized using plain HTML/CSS, without need for advanced Java.

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September 22, 2016 8 Comments

Customizing uifigures part 2

Matlab’s new web-based uifigures can be customized using custom CSS and Javascript code.

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September 7, 2016 5 Comments

Zero-testing performance

Subtle changes in the way that we test for zero/non-zero entries in Matlab can have a significant performance impact.

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August 31, 2016 5 Comments

AppDesigner's mlapp file format

MLAPP files created by AppDesigner can be inspected and manipulated outside AppDesigner.

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August 17, 2016 12 Comments

Customizing axes part 5 – origin crossover and labels

The axes rulers (axles) can be made to cross-over at any x,y location within the chart.

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July 27, 2016 13 Comments

Customizing uifigures part 1

Matlab’s new web-based uifigures can be customized in a variety of undocumented ways.

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July 21, 2016 20 Comments

Listbox selection hacks

Matlab listbox selection can be customized in a variety of undocumented ways.

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July 13, 2016 4 Comments

A few parfor tips

The parfor (parallel for) loops can be made faster using a few simple tips.

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July 6, 2016 6 Comments

Handling red Java console errors

Red Java errors are sometimes displayed in the Matlab console. They can be removed or avoided in a variety of means.

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June 29, 2016 8 Comments

MEX ctrl-c interrupt

An undocumented MEX function can help interrupt running MEX functions.

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June 15, 2016 5 Comments

Figure window customizations

Matlab figure windows can be customized in numerous manners using the underlying Java Frame reference.

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June 1, 2016 No Comments

rmfield performance

The performance of the builtin rmfield function (as with many other builtin functions) can be improved by simple profiling.

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May 25, 2016 5 Comments

Viewing saved profiling results

We can easily use saved profiling results to analyze, view and compare profiling results of multiple runs.

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May 18, 2016 No Comments

Transparent labels

Matlab labels can be set to a transparent background as well as padding.

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May 4, 2016 2 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
  • Alessandro Beda (10 days 19 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 (12 days 10 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 (16 days 5 hours 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 (16 days 16 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 (20 days 17 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 (20 days 20 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 (24 days 7 hours ago): Hello, has anyone tried to change the language of the DateComboBox? For example English -> French ————&# 8212;—- January -> Janvier April...
  • Yair Altman (33 days 5 hours 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 (33 days 6 hours ago): Yair, could you respond to this question please? I’m also finding it difficult to implement such a multi-hierarchy table. Thanks
  • Yair Altman (34 days 16 hours ago): To debug uifigures in an external browser (e.g. to see the internal HTML/CSS) we need to first set Matlab to enable such debugging. I updated Step #2 above with the relevant...
  • Yair Altman (34 days 16 hours ago): The error indicates that the LightweightHelpPanel exists, but fails to load due to some funky preference of your deployed Help documentation. Try to set your Matlab...
  • Ba (42 days 19 hours ago): Dear Iliya, remove uibutton, instead of using the “WindowButtonDownFcnR 21; of uifigure is working for me.
  • Nicholas (52 days 7 hours ago): Hi Yair, Thanks for the reply. I am on Windows 10. I also forgot to mention that this all works wonderfully out of the editor. It only fails once compiled. So, yes, I have tried a...
  • Yair Altman (52 days 14 hours ago): Nicholas – yes, I used it in a compiled Windows app using R2022b (no update). You didn’t specify the Matlab code location that threw the error so I can’t help...
  • Nicholas (53 days 10 hours ago): Hi Yair, Have you attempted your displayWebPage utility (or the LightweightHelpPanel in general) within a compiled application? It appears to fail in apps derived from both R2022b...
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