A=EMA(Close, 3)[3];
B=EMA(Close, 5);
C=EMA(Close,15);
There will be three plots in a individual chart: 1st one is the difference of A and B or ( EMA(Close, 3)[3]-EMA(Close, 5) ); 2nd one is the difference of A and C or (EMA(Close, 3)[3]-EMA(Close, 15);3rd one is the zero line.
If B cross over A, that is a buy signal (using a shape up arrow for indication). If C cross over A, that is a sell signal (using a shape down arrow for indication).
Thanks a lot!
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