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For futures, as-traded prices are derived from electronic trade data.When your algorithm calls for historical equity price or volume data, it is adjusted for splits, mergers, and dividends as of the current simulation date.The Quantopian Research platform is an IPython notebook environment that is used for research and data analysis during algorithm creation.It is also used for analyzing the past performance of algorithms.During algorithm simulation, Quantopian uses as-traded prices.That means that when your algorithm asks for a price of a specific asset, it gets the price of that asset at the time of the simulation.All of our datasets are point-in-time, which is important for backtest accuracy.Since our event-based system sends trading events to you serially, your algorithm receives accurate historical data without any bias towards the present.
A minute bar is a summary of an asset's trading activity for a one-minute period, and gives you the opening price, closing price, high price, low price, and trading volume during that minute.
The research environment is also useful for analyzing the performance of backtests and live trading algorithms.
You can load the result of a backtest or live algorithm into research, analyze results, and compare to other algorithms' performances.
Quantopian provides you with everything you need to write a high-quality algorithmic trading strategy.
Here, you can do your research using a variety of data sources, test your strategy over historical data, and then test it going forward with live data.In other words, if your algorithm asks for a historical window of prices, and there is a split in the middle of that window, the first part of that window will be adjusted for the split.