Stuart McGarrity

MathWorks

Last seen: 7 days ago | Active since 2005

Followers: 7 Following: 0

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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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Solving Cody Problems 55220, 55230, and 55240
24:09 As Cody is having a contest at the moment, I thought I would try and solve a few problems. Here,...

9 days ago

Solved

Calculate the mean of each half of a matrix
Given a matrix with an even number of columns, n, return a 1-by-2 row vector where the first element is the mean of all the elem...

10 days ago

Solved

Find Closest Constant
Given a number x, return the value that is closest to x from this list of constants: 0, 1, , e, , (also known as ). For exampl...

10 days ago

Solved

Matrix Quadrants
Write a function that takes N as the input, and outputs a matrix whose upper-left (NxN) quadrant contains all ones, the lower-ri...

10 days ago

Published

Adding a Case Insensitive Search Option to My Web App
26:54 I need to add some new controls to my web app that searches the HTML of our website. The web app...

1 month ago

Published

Using Implicit Expansion of Strings to Create a List of MATLAB Releases
5:37 I want to be able to create a string array that is a list of MATLAB releases for the last 10...

2 months ago

Published

Converting a Cell Array of Heterogenous Structures to a Structure Array
22:20 When I make a request to a web service I often use, I normally get back a struct array. Now,...

4 months ago

Published

Debugging Example: Navigating Workspaces
22:10 One of my scripts, processing video files using a VideoReader object, has errored, so I need to...

7 months ago

Published

Making a Utility to Track MATLAB Start and Stop Times
40:57 I usually have multiple MATLABs running at any one time. Some I launch manually, and some start...

8 months ago

Published

Adding a Settings Feature to My Web App: Part 3
14:41 So, I think I have finished the work to add a settings feature to my app. Now I want to write...

9 months ago

Published

Adding a Settings Feature to My Web App: Part 2
21:57 So, in my attempt to add a settings feature to my web app, I have managed to add a settings tab...

9 months ago

Published

Adding a Settings Feature to My Web App: Part 1
34:56 I maintain some MATLAB web apps that are used internally by other MathWorkers. For one of the...

10 months ago

Submitted

"Linked Plots and Data Brushing" Video: Commands and Script
MATLAB® Commands, data files and voice-over script used in "Linked Plots and Data Brushing" video.

10 months ago | 2 downloads |

3.3 / 5

Published

Updating My MATLAB Function to Return More Video Metadata
26:47 I have a MATLAB function that returns metadata for the videos stored in a SharePoint folder. I...

11 months ago

Published

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...

12 months 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...

1 year 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...

1 year 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...

1 year 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...

1 year 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...

1 year 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...

1 year 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...

1 year 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...

1 year 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...

1 year 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...

1 year 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...

1 year 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...

1 year 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...

2 years 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...

2 years 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...

2 years ago