【发布时间】:2013-12-17 10:32:12
【问题描述】:
假设我有一个数据集如下:
168.95,176.83,178.13,179.61,179.44,172.83,173.37,175.06,174.94,175.43,175.73,175.43,175.73,175.5,173.78,174.06,172.71,174.3,178.38,174.3,178.38,178.43,177.38,175.43,177.18,175.34,176.16,175.34,176.16,177.03,178.2,177.03,178.2,178.03,178.2,178.19,178.2,178.17,178.2,177.17,174.3,178.38,174.37。 ,176.42,177.4,178.15,173.1,173.4,174.42,173.87,171.85,172.37,172.73,172.28,173.65,172.35,171.66,172.8,171.97,168.56,168.74,168.38,169.78,169.79,170.07,171.57,169.46,169.32 ,170.3,154.83,171.33,169.61,170.08,170.11,170.22,172.16,169.64,169.86,170.56,171.64,166.91,167.93,170.35,170.56,168.16,168.41,170.54,168.89,168.03,169.28,169.47,171.24,169.15 ,170.43,168.36,169.19,168.58,168.67,169.19,167.69,168.4,168.27,167.89,168.18,168.98,168.16,168.98,168.16,166.87,168.36,166.87,168.36,170.2,168.36,170.2,68.36,170.2,168.36,170.2,68.36,169.01,168.36,169.01,168.36,169.01,168.36,169.01,168.36,169.01,168.36,169.01,168.45,169.01,168.25,169.73,168.24,170.12,168.24,170.12,169.13。 ,168.95,169.06,168.47,168.68,170.22,170.04,167.92,168.38,168.14,169.38,170.31,169.27,170.31,168.68,170.35,168.95,170.35,152.99,153.69,156.8,156.45,156.03,156.01,156.03,156.01,156.63,156.68,155.3,31,156.68,155.33,156.31,155.33,156.31 , 155.65, 154.64, 156.02,155.94,154.5,154.5,555.58,155.5,555.58,155.5,555.58,155.66,155.09,155.99,155.27,155.11,155.22,155.98,155.04,153.86,158.48,158.34,158.3,159.29,158.4,158.69,158.4,158.69,159.17,158.69,159.17, 159.13、158.02、158.7、157.94、158.81、159.14、159.1
另外一个数据集如下:
125.14,130.07,130.45,127.8,128.12,128.3,129.18,128,127.84,128.4,128.86,128.95,128.29,129.24,128.33,127.9,128.33,127.9,128.96,127.96,128.08,128.96,128.6,129.27,128.7,129.27,128.74,129.82 ,129.72,129.65,130.12,129.02,129.8,129.5,129.51,129.97,129.95,130.45,130.51,130.51,129.4,128.42,129.33,128.65,129.33,129.71,129.15,129.71,128.63,130.17,128.96,127.8,128.12,127.8,128.12,128.3,128.12,128.3,129.18 ,128,127.84,128.4,128.86,128.95,128.86,129.24,128.33,127.9,24,128.3,127.96,128.08,128.96,128.6,129.27,128.74,129.82,129.72,129.65,130.12,129.02,129.8,129.5
如果不允许您对数据进行过滤或排序,因为它们对应于真实世界的实时值,您建议使用哪种算法方法将数据分组到最少数量的具有统计意义的组中,可以是用于两个数据集(可能更多)?
我最初的想法是获取全局均值、标准差和方差,然后将组分成两组,并为上述内容获取局部值。然后我将比较这两个值,如果它们低于标准,则比较失败的组将进一步分成两部分。这将继续进行,直到组内的标准差和方差足够小以至于不会造成统计偏差。
如果有人能想到一种计算效率更高和/或数学上更严格的方法,我将不胜感激。
另外,我一般是数值方法的新手,欢迎您在这方面提出任何建议。
【问题讨论】:
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这个问题似乎是题外话,因为它是关于统计数据
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你会建议我把它移到数学论坛吗?
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有一个Cross Validated 网站用于统计。
标签: statistics numerical-methods processing-efficiency