Issue #15869 has been updated by bonafernando (Fernando Wolf Bona).


bonafernando (Fernando Wolf Bona) wrote:
> While I was studying Markov Chain I had to find the maximum absolute value of the Matrix to divide the matrix in numbers from 0 to 1 to be able to make further analysis. Like this:
> 
> ```
> q = Matrix[ ... ]
> max = q.to_a.flatten.map { |e| e.abs }.max
> q = q / max
> ```
> 
> So this is the first of two features that I would like to contribute.
> 1. Matrix.abs
> 2. Matrix.max

PR: https://github.com/ruby/ruby/pull/2199

----------------------------------------
Feature #15869: Add abs to Matrix
https://bugs.ruby-lang.org/issues/15869#change-78178

* Author: bonafernando (Fernando Wolf Bona)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
----------------------------------------
While I was studying Markov Chain I had to find the maximum absolute value of the Matrix to divide the matrix in numbers from 0 to 1 to be able to make further analysis. Like this:

```
q = Matrix[ ... ]
max = q.to_a.flatten.map { |e| e.abs }.max
q = q / max
```

So this is the first of two features that I would like to contribute.
1. Matrix.abs
2. Matrix.max



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