[amibroker] [Help] Intraday MA/EMA/WMA questions

["xu_ningning2000" <xu_ningning2000@xxxxxxxxx>]

Okay, I am a novice in programming. 

I know Amibroker provides MA/EMA/WMA for daily calculation using
pre-defined parameters like "close". (I get that from examples)

Let's take ema for example: 

Syntax: ema (array, periods)

How can I express the following idea: 

buy stock when current stock price is greater than current intraday
ema(??, 50)?

Or how to print the current intraday ema(20) and ema (50) for my
reference?

thanks a lot



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