statistics of classification frequency
... 按照性别进行分组统计 by age 分组频率统计 statistics of classification frequency 统计分组 Statistical Grouping ; statisticsbygroup ...
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例如，Web访问统计信息(按当前所编辑的)只不过是以各种方式进行分组的频率计数。
For example, Web-access statistics (as currently compiled) are little more than frequency counts grouped in various ways.
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