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zerohead

禁虫 (职业作家)

【答案】应助回帖


sltmac(金币+1): 感谢应助~~ 2011-07-09 14:05:08
yuping3577(金币+20, 翻译EPI+1): 璐村垏锛?Thank you very much锛? 2011-07-09 21:47:24
例如,要用30组数据求知一个变量的二阶累积和,须写出该组数据不同资料共4960次,其三阶累积和40920次,其四阶累积和为278256次,依此类推,其九阶累积和163008020次之多,即阶数越多,计算就越复杂和烦琐。

For example, to calculate the cumulant of a variable using 30 sets of data, a total of 4,960 combinations of the data are required for the computation of the 2nd order cumulant, and 40,920 combinations for the 3rd order cumulant, 278,256 combinations for the 4th order cumulant, ..., 163,008,020 combinations for the 9th order cumulant, and so on. That is, the higher the order, the more complex and cumbersome is the computation.
2楼2011-07-09 13:03:04
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