// Downloaded From https://www.WiseStockTrader.com
iPeriod=Param("Period", 5, 1);

ssma = MA(C, iPeriod);

for(i=iPeriod+1; i<BarCount; i++)
{
   iSum = ssma[i-1]*(iPeriod-1)+Close[i];
   ssma[i] = iSum/iPeriod;
}

Plot(ssma, "SSMA", ParamColor("Color", colorRed), ParamStyle("Style"));