easyai/python-charting-indicators

This repository contains a python file with is used to calculate charting indicators.

python-charting-indicators's Issues

TypeError: cannot perform reduce with flexible type

Hi i'm using get_MACD function and i use this function to get candles
candles = bot.get_klines(symbol="BTCUSDT", interval=bot.KLINE_INTERVAL_1MINUTE)
and this is my candles output:
[[unixtime, open, high, low, close, volume], ...]
and i get this error:
TypeError: cannot perform reduce with flexible type

Add MACD zero lag indicator

Hello,
a request, if possible, to add MACD zero lag indicator
Thanks

ADX is wrong

ADX indicator is wrong calculated.
+DI and -DI are OK, but not ADX

I were not able to figure where to correct it.

MACD zero lag is wrong

Hello,
I thing MACD zero lag calculation is not the correct one, I don't have any match with a TradingView MACD 0 lag chart.

I used to made it work with DEMA formula, perfect match with TradingView. This made me work my Python :)

You can used it:

def get_DEMA(prices, maPeriod, prec=8):
	
	EMA1 = get_EMA(prices, maPeriod)
	EMA2 = get_EMA(EMA1, maPeriod)
	DEMA = np.subtract ((2 * EMA1[:len(EMA2)]), EMA2)

	return DEMA.round(prec)

def get_zeroLagMACD(prices, Efast=12, Eslow=26, signal=9):
	
	z1 = get_DEMA (prices, Efast)
	z2 = get_DEMA (prices, Eslow)
	lineMACD = np.subtract (z1[:len(z2)], z2)
	lineSIGNAL = get_DEMA (lineMACD, signal)
	histogram = np.subtract(lineMACD[:len(lineSIGNAL)], lineSIGNAL)

	return [({
		"macd":float("{0}".format(lineMACD[i])), 
		"signal":float("{0}".format(lineSIGNAL[i])), 
		"hist":float("{0}".format(histogram[i]))}) for i in range(len(lineSIGNAL))]