Nasdaq,,, done
Correlation result is 0.8305... I'll write test code...
Nasdaq = Cacao * (Copper + Silver + Gold) - Sugar * Coffee
main.py
<script src="https://gist.github.com/Kouhei-Takagi/6efaa2dd834a1ff9aea3138a50fc9b15.js"></script>
validation.py
<script src="https://gist.github.com/Kouhei-Takagi/8e309e65b0aae4213464fffafb78bd30.js"></script>