Oleksandr Zaitsev

There is this but it has to be improved: ```st PMMatrix >> mpInverse "Moore Penrose Inverse. " |f g| self numberOfRows < self numberOfColumns ifTrue:[ f := self transpose qrFactorizationWithPivoting....

Hello! We could create some demos during the meetings of PharoClub. This would be a good educational exercise. But could you show some examples of how these demos should look...

It is still under development, but since the documentation is written in Pillar, we could write it for GTDocumenter and also compile it to HTML and PDF. Maybe we should...

I don't think we should load `DataFrame-Tools` because they depend on many other packages such as Roassal. `DataFrame-Core` is completely independent. Then Tools can be loaded separately. I'm not sure...

About the stable branch. DataFrame's master branch should have a stable version, but I will double-check it. However, I would like to change some things before ESUG. So it's stable...

Another question is whether we really want to load DataFrame together with PolyMath. `scikit-learn` and `scipy` work with `pandas`, but they don't come with `pandas` pre-installed. I think we need...

Hello, @nicolas-cellier-aka-nice , So should I add a test on creation? Because right now it's not performed

**eigen()** function in R has a _symmetric_ parameter > if TRUE, the matrix is assumed to be symmetric (or Hermitian if complex) and only its lower triangle (diagonal included) is...

We can have something like this: ```Smalltalk DataFrame >> readFromCsv: aFileReference. DataFrame >> readFromCsvByUrl: aString. df readFromCsv: '/dir1/dir2/myfile.csv' asFileReference. df readFromCsvByUrl: 'http://path/to/url/myfile.csv'. ```

I'm not sure if I understood you correctly, but: Collections in Smalltalk respond to a message `do:` which accepts `aBlock` as argument and applies that block to every element of...