[CDLLONGLINE] not consistent results in range query and in smaller steps

[lwedel]

Hi Team,

High-level problem statement:

CDLLONGLINE method returns NOT consistent results while querying in two different ways.

• The first way is to run the talib.execute on a large dataset
• The second way is to run the talib.execute on a smaller dataset - where I am interested in the last result

Longer explanation:

• I have two ways of approaching new indicators. One is for me to analyse the data set and calculate the potential results I got with them (backtesting)
• The second one is to run it on real-life data
• Before progressing further, I do a reconciliation - making sure that the production data and backtesting are generating the same signals and, to put it simply, it works.
• While playing with indicator CDLLONGLINE I noticed this is not the case.

What am I missing here?

• I tried to change the ranges of data I am passing to talib.execute
• I tried to be 100% sure I am not messing my id's

Code example: https://pastebin.com/wHfmhT0n