Critical value model of sample correlation coefficient after windowed moving average
Critical value model of sample correlation coefficient after windowed moving average
复制标题
加窗移动平均后样本相关系数的临界值模型
DOI:
10.1080/00949655.2018.1531863
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发表时间:
2018-10
影响因子:
1.2
通讯作者:
Juan Zhao
中科院分区:
文献类型:
--
作者:
Haibo Lin;Li Chen;Juan Zhao
The critical value of correlation coefficient, which varies with the degree of windowed moving averagek, freedomnand confidenceξ, is widely accepted to judge the linear relationship between two independent samplesXandY. In order to avoid referring to inconvenient critical value tables or using time-consuming Monte Carlo (MC) simulation, this paper presents a mathematically unified model for calculating the critical value. In this paper, both independent samplesXandYfollow the standard normal distribution. We analyse MC resultfor these samplesX,Yto establish the model parameters and then examine the model resultfor three different astronomical fields to calculate the confidence levelξof sample correlation coefficient, which is compared with MC result. The results show that the MC resultsand model resultsare in exceptionally good agreement, and the applicability of the model to obtain the confidence levelξis satisfactory when calculating the sample correlation coefficientfor two independent samplesXandY.
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DOI:
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发表时间:
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期刊:
The Astrophysical Journal
影响因子:
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