Filter Example (x = x + c)

import java.util.*; import java.awt.*; import sv.kernel.*;

public class CAddXFilter extends Filter {

public CAddXFilter()// output data set's dimension is 1 and 1 arg needs

super(Filter.ONED, 1); label = "Enter the constant c: ";

}

public Object performFilter() {

TimeData1D onetimedata;

DataSet1D dataSet = (DataSet1D)sources.firstElement();

Vector timeDataVec = new Vector();

float[] xarr, yarr;

int points;

float c = args[0];

for (int i=0; i < dataSet.getnoOfTime(); i++) {

onetimedata = dataSet.getTimeData(i);

points = onetimedata.getnoOfPoints();

xarr = onetimedata.getxArr();

yarr = onetimedata.getyArr();

for (int j=0; j < points; j++)

xarr[j] =xarr[j] + c;

onetimedata = new TimeData1D(dataSet.getTimeArr[i], points, xarr, yarr);

timeDataVec.addElement(onetimedata);

}

return new DataSet1D("x=x+c : " + dataSet.getTitle(), timeDataVec);

}