Momentum pipeline example longs rsi.top(3)?

[Simon Chan]

I was reading the momentum_pipeline.py example (https://github.com/quantopian/zipline/blob/master/zipline/examples/momentum_pipeline.py) and I see:

def make_pipeline():
	rsi = RSI()
	return Pipeline(
	columns={
	'longs': rsi.top(3),
	'shorts': rsi.bottom(3),
	},
	)

Why is it that we long the top 3 RSI shares? If it is in the top 3, it must mean that the RSI is at +70 which means it is overbought and the prices will decline. Is it not supposed to be short the rsi.top(3) and long the rsi.bottom(3)?

[Larry Woods]

Probably typo.