docs: public void renormalizeP() {
  		int targetMax = maxP/20;
  
  		for( int i = 0; i < managers.length; i++ ) {
  			TldFernManager m = managers[i];
  			for( int j = 0; j < m.table.length; j++ ) {
  				TldFernFeature f = m.table[j];
  				if( f == null )
  					continue;
  				f.numP = targetMax*f.numP/maxP;
  			}
  		}
  		maxP = targetMax;
  	}