JSierpien1 instrument - defines Instrument of bars used as indicator data source. period - defines Period of bars used as indicator data source. shift - Defines which bar the indicator is calculated for: 0 - current unformed bar, 1 - previous bar and so on. Is of type Integer. Time Period Integer - number of periods used in calculation Line Double - Indicator output (the result of indicator calculation) IndicatorCall - connects indicator block with other blocks to continue the flow of Visual JForex strategy. General description EMA (Exponential Moving Average) is a moving average that gives more weight to the recent prices. Like SMA, EMA is a lagging indicator (calculated using past prices ), but it reacts quicker to price changes.