opendap/src/main/java/opendap/dap/Attribute.java
public String getValueAtN(int index)
    {
        if(!(attr instanceof Vector)) return null;
        return (String) ((Vector) attr).elementAt(index);
    }
public String getValueAtN(int index)
    {
        if(!(attr instanceof Vector)) return null;
        return (String) ((Vector) attr).elementAt(index);
    }
Returns the attribute value at <code>index</code>.

@param index the index of the attribute value to return.
@return the attribute <code>String</code> at <code>index</code>, or null if a container..