Stuart McGarrity

MathWorks

Last seen: 4 days ago | Active since 2005

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I'm from a small town called Largs near Glasgow in Scotland. I studied for my undergraduate degree in Electronic and Microprocessor Engineering and PhD in Signal Processing at Strathclyde University. I live in Natick, MA.

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Using a MAT-File Object to Save a Variable in Chunks
23:50 I need to save a 50GB string variable to a MAT file. I have noticed that when I use the save...

20 days ago

Published

Categorizing Favorites on the Quick Access Toolbar
4:19 I recently remembered that you can categorize your favorites on the Quick Access Toolbar. This...

2 months ago

Published

Implementing a Lock File with Help from ChatGPT
22:24 I have a utility that lets me save random metrics about various systems and processes to a...

2 months ago

Published

Manually Modifying Data in Running Code
4:55 In a previous blog video, I manually paused my code and changed the value of a variable, in order...

3 months ago

Published

Using the Coverage Report to Help with App Testing
16:42 I’ve created quite a few unit tests for one of my MATLAB apps, but I’m not sure if I’m testing...

3 months ago

Published

Investigating and Fixing a Bug in My Web App
18:48 My colleague told me that one of the web apps that I maintain for internal use has stopped...

5 months ago

Published

Trying to Reduce the Starting Time of My App
12:20 My app takes a while to start because it has to load a good amount of data from a database, then...

6 months ago

Published

Sending Myself a Notification When a Token is About to Expire
11:38 I often use tokens and other types of authentication to access web resources. There is one I use...

7 months ago

Published

Creating a Simple Function with Test Script
14:16 I need to create a simple function to do some string processing in one of my web apps. I thought...

7 months ago

Published

Example of Using the Profiler to Help Reduce the Execution Time of a Function
41:27 I have a function which analyzes the contents of a few hundred folders. Its taking several...

8 months ago

Published

Switching a parfor to a parfeval
16:57 I use parfor a lot when processing large amounts of data. It could be on my local machine, or it...

9 months ago

Published

Creating a Class to Generate a Non-Expiring Token: Part 2
12:32 Here, I make one or two more changes to my class that creates a non-expiring SharePoint token...

10 months ago

Published

Creating a Class to Generate a Non-Expiring Token: Part 1
18:31 I create a lot of code that reads and writes to our internal SharePoint file storage. To do...

10 months ago

Published

Calculating the Duration of an Animated GIF file
13:58 I have a function that returns the duration of a video file. It only supports standard video...

11 months ago

Published

Plotting Data in a Loop to Visualize Progress: Part 2
9:20 In my last post, I prototyped some code that plots the progress of my data download job. I...

12 months ago

Published

Plotting Data in a Loop to Visualize Progress
19:16 I have a script that runs for many hours and downloads a large amount of data from a web...

1 year ago

Published

Implementing a Local File Cache for a Recurring Data Analysis Job: Part 3
26:10 Here I finish developing a local file cache for my video analysis function. In this phase, I...

1 year ago

Published

Implementing a Local File Cache for a Recurring Data Analysis Job: Part 2
42:01 Here I continue developing a local file cache for my recurring data analysis job. Next, I want...

1 year ago

Published

Implementing a Local File Cache for a Recurring Data Analysis Job: Part 1
30:32 I have a recurring MATLAB processing job that analyzes the metadata of the files in a large...

1 year ago

Published

Debugging Some String Processing parfor Code
15:00 My MATLAB function has errored, so I want to determine the cause and fix it. Follow along as I...

1 year ago

Published

Modifying a SharePoint Video Transcript
48:02 I need to be able to download the audio transcript of an existing Microsoft SharePoint video,...

1 year ago

Published

Debugging with the Variables Editor
4:03 I have a bug in my script which removes an element of a string array unexpectedly. So I plan to...

1 year ago

Published

Uploading a Transcript to a SharePoint Video
30:45 Here I want to upload a time-stamped caption file to a SharePoint video using their REST API....

1 year ago

Published

Deleting Past Versions of All Files in a SharePoint Folder
15:51 In my last post, I developed a script to delete the past versions of a SharePoint file using the...

1 year ago

Published

Using the SharePoint RESTful API to Delete Past Versions of a File
28:46 I need to delete all the past versions of a set of files on SharePoint because they are taking...

1 year ago

Published

Speeding-Up a Large File Processing Job with Parfor on a Cluster
94:07 This video uses a different recording style from my others. Rather than recording continuously...

1 year ago

Published

Debugging a MATLAB Code Section
3:51 You many not be aware that you can debug the code contained inside a section (marked by %%)...

1 year ago

Published

Refactoring Code to Functions Manually
9:06 Here I want to modularize and re-use part of my code by converting it to a function, but in this...

2 years ago

Published

Calling the Command Line Tool FFmpeg to Concatenate Video Files
28:25 I often need to call external command line tools from MATLAB to carry out various specialized...

2 years ago

Published

Modifying My Script Indexing to Work with parfor
34:12 I’m trying to parallelize a script that takes a few hours to run. I normally use parfor, the...

2 years ago

Stuart McGarrity

MathWorks

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