Forex bot & backtest system with Python #77 Margin calculation

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Creating a forex bot and backtesting system with Python for complete beginners.

If you want to trade seriously in the Forex markets, you must build yourself a backtesting system.

If you want to trade without emotion, build a system to do it for you.

Using Python you can test 100s of pairs over years of data in just a few minutes.

This way you can test your strategies, and pretty quickly discover that the well known 'indicators' and strategies are worthless.

[beatricesaunders]

Thank you very much. You are truly the best.

[ap]

4:29 I haven't seen the whole video so this might be something addressed later. I don't quite understand your formula for mid: (ask - bid) + bid. Doesn't that equal to ask instead of mid, as the bids cancel each other out?

[ap]

Sorry to bring up another question so soon. I did attempt to solve from google and youtube searches without fruit. I am trying the following for general practice:

6:36:
print(prices['EUR_USD']) works just fine
however,
yields the error "TypeError: 'OandaPrice' object is not subscriptable"

It (prices) looks like a dictionary, but somehow it is not. Converting prices to dataframe and extracting ['EUR_USD']['ask'] yields the same error. I am stumped.

[toddwbutler]

Thank you for you videos. I"m new to forex, kind of new to python. Learned a lot. Is more training coming soon? (Hope so!). Thanks again!

[kevinhu]

About the mid conversion formula : mid = (ask - bid) + bid. Wouldn't this just be equal to the ask price? I thought the mid price is just the average of the bid and ask. Great series, thanks again for sharing this powerful knowledge with the world, FOR FREE! Cheers!