It turns out, the test I prepared earlier passes. So the reported issue needs a bit more work. I wanted to avoid the data-set which reproduces the failure because I'm lazy.

I should have known better.

So I will now do a similar manual step through the data-set as I …

Quite some time back, I wrote a Python library for simple clustering tasks. Back in the day, I only needed K-Means clustering. But I decided I would add hierarchical clustering as well as it could come in handy later on …