Today, I learned to use Sklearn in anaconda JupyterLab.
Sklearn was short for scikitlearn, which was built on numpy, scipy and matplotlib. The name of scikitlearn may come from scipy (I guess).

Figure1. Training of machine learning by the inner database of sklearn package

According to the manuscript in the Web, there were some inner database in the Sklearn, so I used the database of 'iris' to practice machine learning.

Figure2. Iris dataset.png from:http://archive.ics.uci.edu/ml/datasets/Iris