CHI SQUARE PERIODOGRAM - ITS UTILITY FOR ANALYSIS OF CIRCADIAN-RHYTHMS
CHI SQUARE PERIODOGRAM - ITS UTILITY FOR ANALYSIS OF CIRCADIAN-RHYTHMS
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DOI：
10.1016/0022-5193(78)90022-x
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发表时间：
1978-01-01
影响因子：
2
通讯作者：
BUSHELL, WN
中科院分区：
文献类型：
--
作者：
SOKOLOVE, PG;BUSHELL, WN
本文提出用卡方统计量来构造周期图，以分析昼夜节律研究中获得的每小时时间序列数据。即使是相对较短的时间序列（10天），积分值卡方周期图可以区分昼夜周期的随机序列在约0.01的显着性水平。序列相关的影响和解决能力的方法周期性成分的昼夜节律范围内进行了讨论。该方法可以有益地用于事件记录仪数据的分析，以检测14-34小时范围内的节律性，并估计时间段。+-。0.2 H.
It is proposed that chi-square statistics be employed in constructing periodograms for the analysis of hourly time series data obtained in studies of circadian rhythmicity. Even for relatively short (10 day) time series, the integral-valued chi-square periodogram can distinguish circadian-periodic from random series at a level of significance of about 0.01. The effects of serial correlation and the resolving power of the method for periodic components in the circadian range are discussed. The method can be profitably employed in the analysis of event-recorder data for detection of rhythmicity in the range 14-34 h, and for the estimation of period to .+-.0.2 h.