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So far I have some charts displaying my server traffic in a while loop. Next, I think I want to execute the chart updates at a regular rate, so I’m going to move the contents of the loop into a separate function and call it from a timer object. This… read more >>

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In my last post, I worked on accessing a set of continually updating log files from a server. Here I will review what I did to tidy up my code, then work on plotting the streaming data as it comes in.
Features covered in this code-along style video include:

Plotting
datetime function… read more >>

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This will be one of a few posts where I work on building an app that will visualize traffic to a web server, letting me monitor it as its being used. I plan to use App Designer, then deploy the app to the web, which was a new feature in… read more >>

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Here I restructure the section of my code that filters the requests, so I can easily add any filter rule (as an anonymous function) in the future. Once again I forgot to turn on my webcam so you don’t get to see my smiling face, just my desktop.
Features covered in… read more >>

Doug Hull was the founder and owner of this blog for 10 years. I talked about his contributions in my first post.
Find out what he is up to these days in his interview with John Kelly over on the MATLAB Community blog.
… read more >>

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Here I continue with my analysis of the log files of a different server. I need to modify my map function to create some variables and strip some rows which I am not able to do during file reading.
Features covered in this video include:

datastore
mapreduce
regexp

Follow me (@stuartmcgarrity) if you want… read more >>

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I want to carryout the analysis I did in my previous post on another server. However, that server has a different log file format. So I decide to make a parameterizable function that can return a datastore for any server.
Features covered in this video include:

datastore
mapreduce

Follow me (@stuartmcgarrity) if you want… read more >>

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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 of certain quantities and also filter the data to look for certain special requests to our website…. read more >>

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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 include:

Arithmetic (vector) expansion

Follow me (@stuartmcgarrity) if you want to be notified via Twitter when… read more >>

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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 screencast video.
Follow me (@stuartmcgarrity) if you want to be… read more >>