给《Mahout in action》作者的一封信

    最近在研究Myrrix，并发现了一个小BUG，在Myrrix1.0.0版本中，org.apache.commons.math3.util.Pair并没有实现 java.lang.Comparable接口，但是在有些地方却需要将它进行强制转化成Comparable。于是我给Sean发了一封邮件，没想到竟然回复我了，果然天朝与外国是不一样滴！

回复内容：
    Yes, thank you, this has already been fixed and will be released in a 1.0.1 release soon.
    http://code.google.com/p/myrrix-recommender/issues/detail?id=79
    For now, I would simply ignore this feature. It is not essential to the function, and is more for interest than of actual practical use.
    Sean