please, can anyone tell me how to limit my results from my pipeline to 200 each? any help is appreciated, below is my code for the program on which i want to impose a limit
Hi Nathan,
I've attached a version of your algorithm where pipe_output only keeps 100 "long" stocks and 100 "short" stocks. However, the version I wrote simply keeps the first 100 (by name) of each type; you'll probably want to find a less arbitrary way to decide which 200 stocks to trade!
Note: I wrote it this way because the growth_grade field is categorical, so there are >100 A-rated stocks and >100 F- rated stocks, with no way to decide which stocks in the same category are "better" than others. In a case where your data is continuous instead of categorical, you might want to check out the .top() filter to limit your pipeline to a certain number of stocks -- take a look at the usage of .top() in the Creating Custom Factors and Fundamental Data Algorithm examples here. Hope this helps!
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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.