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How to create a `LinesOperation` instance in `Strategy.__init__`?
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In fact, I need to do a
numpy.abs()on the result ofself.datas[0].close - self.datas[0].open. -
@asdasda Create an indicator line that returns the positive values.
self.abs = bt.If( (self.datas[0].close - self.datas[0].open) < 0, -(self.datas[0].close - self.datas[0].open), (self.datas[0].close - self.datas[0].open), )
