Data Conversion

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 [...]

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 [...]

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 [...]

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 [...]

I recently got a question in my inbox asking how to set the background image for a GUI. This is done by creating an axes in the GUI and putting an image in it. Any UICONTROLs that you put on the GUI will appear over the image. See this video for the details: Video [...]

Many of you have surely noticed that this blog took a sharp turn towards video content since I moved to the Advanced Support Group at the MathWorks in May. With all these videos, I have had to get organized. Most of that organization came by way of MATLAB scripts and GUIs. One [...]

This is one in a series of videos covering MATLAB basics. It is meant for the new MATLAB user. This video covers how a variety of visualizations that are available in MATLAB for surfaces. Video shows how to change shading to get nice looking surfaces. Find the files here. Other videos have been gathered here: http://blogs.mathworks.com/pick/category/video/ Other MATLAB Basics posts [...]