Real author:
klot
This indicator is an example of smoothing the Moving Average indicator timeseries by filtering high-order harmonics.
You can use this approach for smoothing the output of any indicator. The major advantage of this method is that it has practically zero latency.
The resulting indicator is implemented as a cloud between the smoothed average and smoothed Close price.
Indicator input parameters:
input uint  MAPeriod=13; input  ENUM_MA_METHOD  MAType=MODE_EMA; input ENUM_APPLIED_PRICE  MAPrice=PRICE_CLOSE; input uint N = 7;  // Series length input uint SS = 20; // Smoothing coefficient input int Shift=0;  // Horizontal indicator shift in bars
where:
- N — sets the series length (power of two);
- SS — smoothing coefficient in the resulting spectrum zeroes out frequencies exceeding the set value. SS cannot be greater than 2^N. If SS = 2^N, the Moving Average series is repeated.
This indicator requires the following library:
Fig.1. The i-SpectrAnalysis_MA indicator