计算结果表明，睡眠脑电序列具有长程相关性，而且是多重分形过程。

The result shows that the sleep EEG series has the multifractal features as well as long range correlation.

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运用DFA方法对上海综合指数和深圳成分指数三种形式的收益率进行长程相关性研究。

This paper researches the long-rang correlation properties of three forms' returns of Shanghai synthesis index and Shenzhen composition index by use of the method of DFA.

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长程相关的时间可达8 ~9年，表明长程相关性是降水酸度趋势预测中必须考虑的重要因子。

The dependence duration may persist 8-9 years, implying that the long-term dependence may be a very important factor and must be considered in the trend prediction of rain acidity.

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长程相关的时间可达8 ~9年，表明长程相关性是降水酸度趋势预测中必须考虑的重要因子。

The dependence duration may persist 8-9 years, implying that the long-term dependence may be a very important factor and must be considered in the trend prediction of rain acidity.

youdao