Data Conversion

Doug and Scott are both Application Engineers at The MathWorks. MATLAB users since 1994, they get paid to live, eat, and breathe MATLAB! Each week, they highlight a submission from the File Exchange that they find useful or interesting. Doug (left) and Scott (right) at a recent conference

First, be sure to check out the new home of LazyWeb. We had three of the challenges closed, but there are three still open. We are sending out MATLAB prize packages to all that solved a challenge, and look forward to sending out more as the rest are tackled. Here is a three and [...]

In a recent post, I mentioned LazyWeb It worked better than I expected. Matt posted some code that I requested that will highlight a line when you click on it. This works exactly as hoped. Thanks Matt, your MATLAB T-shirt has been shipped to thank you for your effort. Ned thought this [...]

In a recent post, I showed how Roger did a mash-up of two prior Picks. In the video, I actually made a request that someone make some further modifications to the code. This concept of asking other people to do software development tasks for you is often called “LazyWeb”. We think it [...]

One of the purposes of MATLAB Central is to encourage collaboration and code sharing in the MATLAB community. I was overjoyed when I was alerted to this new file on the Exchange. Basically, Robert was inspired by two recent Blog posts that obscure passwords in a GUI and that allow you to send [...]

I love the MATLAB contest, one of the great things about working at The MathWorks is I get to ‘play test’ the contest before it goes live. One of the bad things about working at The MathWorks is that I can not play the real contest. The contest starts tomorrow with me as [...]

Two minute video shows how to fit a surface to nonuniform data. Real data is not always on a nice X,Y grid, but the MATLAB commands SURF and MESH expect them to be. GRIDDATA and MESHGRID help to fix this. Video Content Find the files here. PodCast here Other videos have been gathered here: http://blogs.mathworks.com/pick/category/video/

Two minute video shows how to validate GUI input. This makes sure that user input will not break your code. This example makes sure that the edit box value is not greater than twelve. This technique can be used for many different tests. Video Content Find the files here. Other videos have been [...]

When I look at code written by new users, sometimes, I will see code like this: a = [1 2 3 4 5 6 7 8 9 10 11 12 13 14 15]; There is an easier way: a = 1:13; This three minute video shows how to use commands like linspace and the colon operator to make vectors [...]

People have used different methods over the years to have MATLAB alert them when MATLAB is done with a long set of calculations from playing a sound file, to sending an e-mail, or now sending a text to your cell phone. This is a nice little mash-up that uses SENDMAIL to send mail to your Google [...]

This is one of a series of videos covering MATLAB basics. It is meant for the new MATLAB user. This video covers how to use the import wizard to bring in files, and then use the plot tools to customize a graphic. Finally, the “save as” feature is used to get a .jpg Video Content Find [...]