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                                            ronaimate95

Some indicators return 0 instead of NaN when not enough datapoint in the dataset to calculate.

> Oh, there's a way to access a lookback values indeed: > > ``` > from talib import abstract > func = abstract.Function('CDL2CROWS') > func.lookback > >> 12 > >...

Some indicators return 0 instead of NaN when not enough datapoint in the dataset to calculate.

> We have been returning an integer array similar to the C functions, but this is a good point. Either we should expose the look back, return a smaller array...

Some indicators return 0 instead of NaN when not enough datapoint in the dataset to calculate.

I found that abstract.Function('MAMA ').lookback returns -1. Why is that? When I calculate it, the first 31 element in the two result array is nan, shouldn't it be 31?