Smooth an indicator in an EA

Hi guy's / experts,
how can help me to solve my problem?
In an EA I use i.E
MyEMA = iMA(NULL,0,Period_1,0,MODE_EMA,PRICE_CLOSE,0)
To get a smoother curve, I want to use a second EMA-calculation with the Period_2 for the value of MyEMA.
When I use MyEMA instead of PRICE_CLOSE, it does not work!

Can anybody help me, how to solve this problem.
Thanks in advance.
SIRIUS

it doesn't work because you can't do a moving average on a single point.

capture all of your myema's and place them into an array. Then do a iMAonArray to smooth your results.

Thanks magnumfreak.
after reading some info's, I pointed out my missanderstanding about my selfmade problem.
In parallel I solved my problem in this way, that I wrote an indicator and refered to that via " iCustom(...) in the EA, so my EA is running perfect.
best regards SIRIUS