I am trying to learn the language used here because of the advantage of the large historical database. But I noticed that code is data dependent as opposed to other platforms where the code is generic and it is applied to chart windows. Maybe I still do not understand after reading the manual how to write data-independent code but it seems to me that the code for a system must load the data something that is not common and possibly a limitation if that is of course the case. I may not fully understand the language as I already said so any input will be useful.
Hey Ricardo,
Welcome to Quantopian! Can you clarify what you mean by 'data dependent' vs 'data independent' code? From my experience, data dependency in compiler design considers how program statements refer to previous statements in the program and how the relations affect execution flow. Do you have questions on how the asset data is accessed through Quantopian?
Ryan
By data dependency I mean loading specific data from inside the code. This means that each time you want to test another symbols you must alter the code instead of just applying the same code to some chart window like it is done in popular platforms.
Hey Ricardo, Python affords plenty of versatility and portability. Quantopian allows you to write certain functions to analyze financial data and make investment decisions. The same functions can be used with different symbols by defining a different universe of assets in within the 'initialize' method, then applying the same functions to the different group of assets. Please feel free to ask further questions!
Programming code, in this case trading system code, that incorporates reference to specific tickers is non-standard. In many or all commercial backtesting platforms the code is data independent and no changes must apply to use it with different tickers. Maybe your developers should consider a more flexible architecture. It is certainly not a big deal to edit the code to modify the ticker but this shows a non standard design. However, as I said I am interested in this platform because of the large database and I could live with such limitations if I decide to use it for my work.
Please sign in or
join Quantopian to
post a reply.
Need help?
Contact support.
Company
Learn & Support
Notices
Follow Us
The material on this website is provided for informational purposes only and does not constitute an offer to sell, a solicitation to buy, or a recommendation or endorsement for any security or strategy, nor does it constitute an offer to provide investment advisory services by Quantopian.
In addition, the material offers no opinion with respect to the suitability of any security or specific investment. No information contained herein should be regarded as a suggestion to engage in or refrain from any investment-related course of action as none of Quantopian nor any of its affiliates is undertaking to provide investment advice, act as an adviser to any plan or entity subject to the Employee Retirement Income Security Act of 1974, as amended, individual retirement account or individual retirement annuity, or give advice in a fiduciary capacity with respect to the materials presented herein. If you are an individual retirement or other investor, contact your financial advisor or other fiduciary unrelated to Quantopian about whether any given investment idea, strategy, product or service described herein may be appropriate for your circumstances. All investments involve risk, including loss of principal. Quantopian makes no guarantees as to the accuracy or completeness of the views expressed in the website. The views are subject to change, and may have become unreliable for various reasons, including changes in market conditions or economic circumstances.