Hi,
I recently wrote a simple algorithm that was giving good returns. I pressed the "save" button many times throughout.
Today I've come back to quantopian only to find my algorithm has not been saved. An older version is in its place.
Is there anything I could have been doing wrong that caused this? (for example could browser caching be a problem?)
Thanks.
Quantopian does an auto-save every few seconds. We have the "save" button there to make people feel safe, but it doesn't effectively do much, because the save is happening already! If the save isn't working the IDE puts up an insistent popup that says that save isn't working.
Having the same algo open in two browsers at once can cause problems if you are editing in both windows. If one browser window is truly idle, it won't overwrite. But if you make a bunch of changes in Window A, and then make one change in Window B, Windown B is going to "win" and overwrite A. I'm making a note to change that in the future to throw a warning about that situation.
Did you happen to run a full backtest at any point? If you ran a full backtest then a copy of the code is saved with the backtest and you can revert.
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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.
