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Stuart’s MATLAB Videos

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Using the MapReduce Technique to Process 500GB of Server Logs 5

Here I’m using the MapReduce functionality in Parallel Processing Toolbox to process several hundred GBs of server logs from our web site. I want to be able to visualize the counts per minute… 更多内容 >>

Using R2016b Arithmetic Expansion Rules to Make a Matrix Without a For Loop

Here I show how the new arithmetic expansion rules in release 16b can be used to answer a blog post comment question. See the great post by Loren on the subject.
Features covered in this video… 更多内容 >>

Incorporating Hourly Data Analysis into Another Function

Here I take the analysis I did in this post to group website crawl data by the hour, and incorporate it into another function that runs daily. I forgot to turn on my webcam for this one, so its just… 更多内容 >>

Using varfun with datetime Values to Group Data By Hour

When I analyze our website, the testing system I use downloads all pages. It can take several hours as there are almost a million of them in the subset I look at. Sometimes it takes longer than usual… 更多内容 >>

Writing a Script to Count Data in Multiple Text Files 2

Here I need to combine the data from multiple text files by grouping and summing by one variable. I also try using a datastore which I have not used much before.
Features covered in this code-along… 更多内容 >>

Adding a New UI Element to a MATLAB App with App Designer 4

If you have used GUIDE a lot in the past and are thinking of trying out App Designer, this will give you an idea of how its like to work with that tool. Here I add a new UI element to an existing… 更多内容 >>

Cody Code-Along: R2016b Feature Challenge – Use a timetable to analyze a train timetable, Part 4

In part 4 of the train timetable set of Cody problems, you need to calculate the average trip duration for each day in the timetable. This one is about as exciting as watching paint dry as it takes… 更多内容 >>

Trying Steve’s First Deep Learning Example

My colleague Steve Eddins, who you may know from his Image Processing blog, has a new one on Deep Learning. To learn more about this subject, I thought I would try the first example he just posted,… 更多内容 >>

Cody Code-Along: R2016b Feature Challenge – Use a timetable to analyze a train timetable, Part 2

In part 2 of this Cody problem you need to select the next departure from a train time table based on certain criteria. It does take me a few tries to return the answer in the format the problem… 更多内容 >>

Converting a Set of Video Caption Text Files From One Format to Another

I offered to help my colleague Josh to convert a bunch of video caption text files from one format called DFXP to another called WebVTT. The text files store lists of voice-over captions with start… 更多内容 >>

Posts 121 - 130 of 468