Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you may not be able to execute some actions.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
请教,statistics.lq() 返回灰度的第一四分数---是何含义?
把值按照大小顺序排排站,最中间的就是中位数。 在1/4位置的第一四分数,3/4位置的就是第三低分数。