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# TODO: convert to DML builtin using cumsumprod(data, alpha) 

s_ema = function(Frame[Double] X, Integer search_iterations, String mode, Integer freq, 
  Double alpha, Double beta, Double gamma) return (Frame[Double] Y) {
  M = map(X, "UtilFunctions.exponentialMovingAverageImputation(" + search_iterations + ";"
    + mode + ";" + freq + ";" + alpha + ";" + beta + ";" + gamma + ")")
  Y = as.frame(as.matrix(M))
}