Hands-On High Performance with Go

Matrix transposition practical example

Transposing matrices is fun, but it may be helpful for you to have a practical example of when matrix transposition might be used. Let's say that we have three engineers: Bob, Tom, and Alice. These three engineers push Git commits daily. We want to keep track of these Git commits in a meaningful way so that we can make sure the engineers have all the resources they need to continue writing code. Let's take a count of our engineers' code commits for 3 days:

User	Day	Commits
Bob	1	5
Bob	2	3
Bob	3	10
Tom	1	1
Tom	2	6
Tom	3	4
Alice	1	8
Alice	2	7
Alice	3	2

After we have our data points, we can represent them in a 2D array:

Now that we have this array, we can take the transposition ...