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Custom data accessing custom data in algo

Loading in the custom data all works well if I want to call any of the following in OnData()

yld["Open"] = float(data[1])
yld["High"] = float(data[2])
yld["Low"] = float(data[3])
yld["Close"] = float(data[4])
yld["Adj_Close"] = float(data[5])
yld["Volume"] = float(data[6])

eg data["grid"].Close

 

but if I try:

yld["blue_neg_one"] = float(data[8])

data["grid"].blue_neg_one I get the following error.

AttributeError : 'Data' object has no attribute 'blue_neg_one'

 

essentially my question is, How do you access the other column when importing custom data. Having read through the examples there don't seam to be any applicable refrences to this.  

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Hi James, 

To access “blue_neg_one”, we use data[self.grid].GetProperty(‘blue_neg_one’). Also, to be extra safe, I’ve added if data.ContainsKey(self.grid): to make sure we have the data before trying to access it.

Best,
Shile Wen

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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 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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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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