There are a number of corrections I believe in this script but I am unsure of the importance of these pattern (s) since they are quite rare anyhow. So why continue? Why even bother trying to develop for wedges as well?

In summary; Should I abandon both flag/pennants and wedges patterns. They are tough to program and plot among other reasons listed.

http://quantlabs.net/blog/2018/05/introducing-flag-pennant-technical-pattern-automated-crypto-currency-trading/