case 1:
return new NeighborhoodRBF1D( new MexicanHatFunction(0,1,this.rbfWidth.getValue()));
case 2:
return new NeighborhoodRBF1D( new MultiquadricFunction(0,1,this.rbfWidth.getValue()));
case 3:
return new NeighborhoodRBF1D( new InverseMultiquadricFunction(0,1,this.rbfWidth.getValue()));
case 4:
return new NeighborhoodBubble( (int)this.rbfWidth.getValue() );
case 5:
return new NeighborhoodSingle( );
case 6: