trading view - How to draw MACD and EMA in one script ( Pine Editor)-Tradingview -


i want draw macd , ema in 1 script . implement below :

//@version=3 study("example of alertcondition") fast = 12, slow = 26 fastma = ema(close, fast) slowma = ema(close, slow) macd = fastma - slowma src = input(close) ma_2 = ema(src, 36) plot(ma_2, color=red) plot(macd, color=blue)

but don't draw anything. if remove 

plot(ma_2, color=red)

so script draw macd.if remove

plot(macd, color=blue)

so script draw ema. why can not draw 2 indicators in case ?

can me .

thanks


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