int windowSize = 7; //can be anything less than length of signal  
MedianFilter mf = new MedianFilter(signal, windowSize); //signal is of type double[]  
double[] out = mf.filter(); //get the result after filtering  

String mode = "mirror" //can be any of the operating modes described above
int windowSize = 5; //can be anything less than length of signal  
int polyOrder = 2; //Order of the polynomial used to generate coefficients
int deriv = 0; // Order of derivative
int delta = 1; // Spacing of samples to which filter is applied
Savgol s1 = new Savgol(signal, windowSize, polyOrder, deriv, delta); //signal is of type double[] 
// ALSO: Savgol s1 = new Savgol(signal, windowSize, polyOrder) set deriv=0, delta=1 by DEFAULT
double[] out = s1.filter(mode); //get the result after filtering 

int windowSize = 7; //can be anything less than length of signal  
Wiener wf = new Wiener(signal, windowSize); //signal is of type double[]  
double[] out = wf.filter(); //get the result after filtering