public String getNumericName(int i )
    {
        if(i < getNumNumericalVars() && i >= 0)
            return numericalVariableNames.getOrDefault(i, "Numeric Feature " + i);
        else
            throw new IndexOutOfBoundsException("Can not acces variable for invalid index  " + i );
    }
public String getNumericName ( int i ) { if ( i < getNumNumericalVars ( ) && i >= 0 ) return numericalVariableNames . getOrDefault ( i , "Numeric Feature " + i ) ; else throw new IndexOutOfBoundsException ( "Can not acces variable for invalid index  " + i ) ; }
Returns the name used for the <tt>i</tt>'th numeric attribute.
@param i the <tt>i</tt>th attribute.
@return the name used for the <tt>i</tt>'th numeric attribute.