...性 基础上,再对数据进一步分析,对神经元的SC,FSL和频率及幅度的关系进行作图,并拟合分析SC及FSL的标准差(standarddevimion,SD)和变异系数(coeffientofvariation,CV)与频率和幅度的关系。
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甲亢左室肥厚逆转前后QT离散度的变化--深度搜 亢控制后再复查各项指标.结果:LVH组的Qtac,QTc离散度(QtacD,QTcD),QTa和QT的标准差(QtaS,QTS)均与心室心肌质量指数(LVMI)相关地显著增加.控制甲亢后又都降低.结论:控制甲亢能逆转LVH并改善
基于3个网页-相关网页
甲亢左室肥厚逆转前后QT离散度的变化--深度搜 亢控制后再复查各项指标.结果:LVH组的Qtac,QTc离散度(QtacD,QTcD),QTa和QT的标准差(QtaS,QTS)均与心室心肌质量指数(LVMI)相关地显著增加.控制甲亢后又都降低.结论:控制甲亢能逆转LVH并改善
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选取以下HRV时域指标:全 部正常窦性心搏( , NN)的标准差(standard deviation of all NN intervals, SDNN);全程相邻NN间期之差的均方根值 (root mean square of sussessive d...
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但若组合里只有股票和债券,我的标准差会高得多。
But if I would confine myself just to stocks and bonds, then I would get a much higher standard deviation.
不同测量者用方盘量角器在相同人身上测得的数据的标准差明显小于通用量角器。
The standard difference of data taken from the same person with the square goniometer by different examiner were smaller than that with the universal goniometer.
分析规程的精密度通常以一系列测量数值的标准差或相对标准差(变异系数)来表示。
The precision of an analytical procedure is usually expressed as the standard deviation or relative standard deviation (coefficient of variation) of a series of measurements.
That's got the lowest possible standard deviation of expected return and that's 25% stocks and 75% bonds with this sample period.
这个组合预期回报的标准差最小,在这一点上,投资组合,由25%的股票和75%的债券构成。
It shows the standard deviation of the return on the portfolio as a function of the expected return on the portfolio.
它是投资组合的收益标准差,关于预期收益率的函数图像。
But if I would confine myself just to stocks and bonds, then I would get a much higher standard deviation.
但若组合里只有股票和债券,我的标准差会高得多。
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