Message from Python discussions

December 2018

— Don't use +=, use append() instead


Yes i do that and it's working but the thing is that i want to deploy this formula and it is being difficult to me wich forloop use, look


list_1 = [1, 2, 3, 4, 5, 6]
list_2 = []
for ...
your magic here, append elements to list_2


HAO = (Open of previous bar + Close of previous bar) / 2
HAC = (Open + High + Low + Close) / 4
HAH = Highest of High, Open, or Close
HAL = Lowest of Low, Open, or Close

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— So i have a list with each Open, High, Low, Close

— And i try to do this:

for x in opens:

— But my approach is not correct, i am trying to figure out how to solve this formula

— So i have the list of opens for example that is:
and closes that is:
For example, and i want to deploy this formula

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— I tought at first that opens[-2] would do the trick but i need to do it recursively trough all the list

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— So i think i need an aditional forloop

— Use simple list comprehension