如何提取数组中的频率 ？

FreddyMusic

如何提取数组中的频率 ？

一组 数据

SSTable = {54, 49, 50, 46, 48, 50, 50, 44, 50, 52, 49, 48, 48, 47,
   47, 50, 50, 46, 47, 48, 48, 49, 51, 48, 48, 47, 51, 48, 49, 45, 49,
    46, 46, 49, 48, 46, 49, 51, 55, 45, 51, 51, 49, 49, 49, 51, 50,
   51, 50, 48, 50, 48, 47, 49, 45, 49, 48, 49, 50, 51, 49, 50, 48, 46,
    45, 49, 53, 47, 47, 49, 49, 45, 44, 54, 47, 45, 46, 49, 46, 45,
   51, 47, 50, 52, 47, 50, 47, 47, 51, 55, 48, 45, 48, 47, 51, 48, 46,
    46};

如何提取频率 ？如下结果，使用哪个命令啊 ？

SSFrequency = { 2, 8, 10, 13, 16, 18, 13, 11, 2, 1, 2, 2};

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Excel 就有函数 Frequency 而Mathematica 用哪个，没找到 ？

bainhome

this？

[ 本帖最后由 bainhome 于 2007-6-13 00:56 编辑 ]

FreddyMusic

YES！Big Thanks bainhome ! :kiss: