Doug’s MATLAB Video TutorialsFebruary 3rd, 2010Win a MATLAB t-shirt for a ten question surveyIt has been a while since the last survey of MATLAB video watchers. This is a good time to think about what can be done to make these videos more valuable.One in twenty survey takers will win. The survey will be open for one week, the winners notified by e-mail. The results will be summarized in a future blog post.
In a completely unrelated note: We have set up a Virtual Career Fair to recruit Graduate Students for The MathWorks. We will be hosting this event on February 4th, from 11 AM – 7PM. Our goal is to get over 2,000 graduate students to log into this event and learn more about us and working here! During the event, we will have live engineers and managers to chat with about the technical support opportunities. January 29th, 2010Advanced: Speeding up an enumerated string search in a data mining applicationThis week, I am going to cover a technique that I used to speed up a data mining application that had a search through enumerated strings looking for all the matches. Using this technique of substituting numeric values for the strings, I was able to see a twenty fold speed increase.
January 22nd, 2010Advanced: making a 2d or 3d histogram to visualize data densityThis short video makes a 2d histogram as an alternative to plotting data points and visually estimating where the most data is.
January 15th, 2010Basics: Dialogapalooza- a look at many predefined dialogsVery often MATLAB user will write in and we figure out that they are trying to reinvent a dialog that already exists. I quickly go through and show the most useful dialogs from this list.
January 8th, 2010Basics: Refactoring a switchyard into a formulaThis short video shows how a switchyard of if/elseif statements was converted to a simple formula. Testing of this refactoring was also done.
December 31st, 2009Basics: Finding a subset of a matrixImagine you have a matrix, and you want to make a subset of that matrix that has only the rows that have a 2 in the first column. This is how you would do that.December 17th, 2009Advanced: Loading, filtering and displaying geographic data with the Mapping Toolbox.This short video uses the Mapping Toolbox to load in the state boundaries in a given area and display them on a special map axis. Random points are also generated and filtered based on their location.
December 11th, 2009Advanced: Making a sweeping slice through volume of data.A MATLAB user recently asked how we could make a visualization similar to this one.
I was a little surprised that we were able to do the visualization, with interactivity in less that 15 lines of code.
This video makes use of cell mode to get the interactivity. You can see how something like this could be done with a GUI to get the interactivity that you might want. If you like this kind of thing, Slice-o-matic, will be good for you. December 7th, 2009Basics: Volume visualization: 9/9 Unifying exampleThis short video is the final of a series of nine that talks about volume visualization. Patrick gave this talk internally to help technical support engineers understand capabilities of MATLAB for volume visualization.
I like his slow, clear, methodical presentation with great visualizations. It is the first time I have deeply understood some of the volume visualization techniques we have.
November 30th, 2009Basics: Volume visualization: 8/9 Displays and explains streamtubes and streamribbonsThis short video is the eigth of a series of nine that talks about volume visualization. Patrick gave this talk internally to help technical support engineers understand capabilities of MATLAB for volume visualization.
I like his slow, clear, methodical presentation with great visualizations. It is the first time I have deeply understood some of the volume visualization techniques we have.
|
|
|||
|
These postings are the author's and don't necessarily represent the opinions of The MathWorks. |
Recent Comments