Low EMA of EMAgain over the chart for ProfitTrailer

This script prints low EMA line over the chart.

Buy value and time frame numbers can be modified in format.

Basically this is same with previous scripts of mine.

Though this does not show the spread between the price and low EMA line (EMAgain) and buy value, you can see the buy trailing signal.

If you set buy value positive for gain starategy, the buy trailing will start from the time point indicated by "▲".

If you set buy value negative for gain starategy, the buy trailing will start from the time point indicated by "▼".

This script is to help myself understand the buy strategies of ProfitTrailer.

Any comments and suggestions are welcome.