I haven't seen Agustin's approach before but the original source code I used was from IBM's Qiskit Tutorials. In my case, I used Qiskit's code as a foundation and I changed a few parameters as well as implementing the classical version of the algorithm. Here's the link of the source code if anyone is interested: https://github.com/Qiskit/qiskit-tutorials/blob/master/legacy_tutorials/aqua/machine_learning/qsvm_classification.ipynb