59:44

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 >>

34:21

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 >>

33:46

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 >>

34:15

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 >>

41:48

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 >>

5:33

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 >>

23:26

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 >>

18:19

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 and I’m not sure why. I want to start doing some analysis… read more >>

37:54

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 style video include:

readtable, fileDatastore with read function parameter
varfun

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

21:28

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 MATLAB app that I’m building. I need… read more >>