rCall = "result = filter(dataset, name=\"" + firstName + "\", fname=\"" + lastName + "\")";
parameters.put("firstName", firstName);
parameters.put("lastName", lastName);
filter = new JavaFilterByObserver();
} else if (jRBLatitudeAndLongitude.isSelected()) {
String longLow = jTextFieldLowerLongitude.getText();
String longUp = jTextFieldUpperLongitude.getText();
String ew = jTextFieldEW.getText();
String latLow = jTextFieldLowerLatitude.getText();