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Eason
I think the way that I use this self.history function is right, but why I got an empty DataFrame
Eason
Can anyone help me? please…. This problem is tormenting me😢
Vladimir
Eason,
Try this wayÂ
Â
Varad Kabade
Hi Eason,
The above issue occurs because the algorithm is subscribed to daily data; because of this, the daily window is not wide enough to accommodate the history request. We recommend using Finer resolution(Minute, Second) for the above implementation.
Best,
Varad Kabade
Dan Kim
To restate what Varad said in different words:
You're subscribed to daily data but your start time and end time seem to be too close together to be filled with daily resolution data.
Eason
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 QuantConnect. In addition, the material offers no opinion with respect to the suitability of any security or specific investment. QuantConnect 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. All investments involve risk, including loss of principal. You should consult with an investment professional before making any investment decisions.
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