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Hi, the following algo works fine with the existing startdate (2015). However, if we change the start date to say 2010, it has a pandas error "Runtime Error: IndexError : -1 at get_value raise IndexError(key) File "/opt/miniconda3/lib/python3.6/site-packages/pandas/core/series.py" in base.py:line 4750 IndexError : -1"
any idea? thanks
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Louis Szeto
Hi Zicai
I dunno why your code works in your way from 2015, but positional selection of pandas should use .iloc function.
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.
Zicai Feng
Thanks Louis, yeah iloc works now! rookie error by me. thank you so much!
Zicai Feng
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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