Donchian channel with Turtle trading style: buy long when price is higher than high 20 candles (green up arrow), and sell short when price is lower than low 10 candles (red down arrow).
Close observation holds the key to the area of value
SparkyFlary
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Can you put a middleband on this? Would this work the same if you replace the line "upper = highest(high[1], long)" with "upper = highest(high, long)[1]" ?