Loop Multiple Conditions in Custom Indicator

mics

QUESTION

How do I add multiple conditions in the for loop?

PROBLEM

I want to check if both open and close are above bollinger-mid. I know the below code is incorrect but hopefully it shows what I am trying to achieve.

INDICATOR

class OpenAndCloseAboveBBmid(bt.Indicator):

    lines = ('consecutive',)
    params = (
        ('period', 15),  # how many to consider
        ('ago', 0),  # offset to start in the past
        ('bbperiod', 20),  # offset to start in the past
        ('devfactor', 2),  # offset to start in the past
    )

    def __init__(self):
        
        self.bollband = bt.indicators.BollingerBands(self.data, period=self.p.bbperiod, devfactor=self.p.devfactor, plot=False)
        
        ### I KNOW THIS NEXT LINE WON'T WORK BUT IT SHOWS WHAT I AM TRYING TO ACHIEVE
        incs = [self.data.open(-i) > self.bollband.lines.mid(-i) and self.data.close(-i) > self.bollband.lines.mid(-i) for i in range(self.p.ago, self.p.ago + self.p.period)]
        
        self.lines.consecutive = bt.All(*incs)

ab_trader

bt.If, bt.And, bt.Or

Docs - Platform Concepts

mics

@ab_trader Thanks for the info.

Working indicator with two conditions (open and close > bb.mid).

import backtrader as bt
import backtrader.indicators as btind


class AboveBBmid(bt.Indicator):

    lines = ('open', 'close')
    params = (
        ('period', 15),  # how many to consider
        ('ago', 0),  # offset to start in the past
        ('bbperiod', 20),  # offset to start in the past
        ('devfactor', 2),  # offset to start in the past
    )

    def __init__(self):
        
        self.bollband = bt.indicators.BollingerBands(self.data, period=self.p.bbperiod, devfactor=self.p.devfactor, plot=False)
        
        bar_open = [self.data.open(-i) > self.bollband.lines.mid(-i) for i in range(self.p.ago, self.p.ago + self.p.period)]
        
        self.lines.open = bt.All(*bar_open)

        bar_close = [self.data.close(-i) > self.bollband.lines.mid(-i) for i in range(self.p.ago, self.p.ago + self.p.period)]
        
        self.lines.close = bt.All(*bar_close)
        
        self.combined = bt.And(self.lines.open, self.lines.close)