How do I know if i Have discovered an edge?

>How do I know if i Have discovered an edge?
That's an easy one. If you're posting about it on biz, you haven't.

Once you have this p/L column correctly made from this, you just sum it up.

Assuming long-only:
P/L = tn_modelsaysSell - t1_modelsaysBuy. Where t1... tn (time that position was held).

If between t1 and tn, priceLow