docs: private FastQueue<TupleDesc_F64> createSet( Random rand ) {
  		FastQueue<TupleDesc_F64> ret = new FastQueue<>(10, TupleDesc_F64.class, () -> new TupleDesc_F64(DOF));
  
  		for( int i = 0; i < NUM_FEATURES; i++ ) {
  			TupleDesc_F64 t = ret.grow();
  			for( int j = 0; j < DOF; j++ ) {
  				t.value[j] = (rand.nextDouble()-0.5)*20;
  			}
  		}
  		return ret;
  	}