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- 4 计算各性状的变异系数(coefficient of variation,CV)。4 The CV of each trait was calculated.
- 变系数模型(Varying-coefficient Model)是由Cleveland,Grosse,和Shyu(1992)与Hastie,Tibshirani(1993)年提出的。Varying-coeffcient models(VCM) was proposed by Cleveland, Grosse and Shyu(1992), then discussed by Hastie and Tibshirani(1993) in detail.
- 三种模拟渔业来自蒙特卡罗模拟，白色噪音由Box-Mueller方法发生，其水平(变差系数，coefficient of variation，CV)设为CV=1%，10%，30%和50%。The three simulated fisheries were estimated by Monte Carlo simulation, the white noises were generated from Box-Muller method; the levels (Coefficient of Variation, CV) were 1%25, 10%25, 30%25 and 50%25.
- 方法:对16例非宫颈肿瘤女性的子宫颈和20例宫颈癌患者的子宫颈进行常规MRI扫描和横断面DWI(b=800s/mm2),比较正常宫颈和宫颈癌病灶的表观弥散系数(apparent diffusion coefficient,ADC)值。METHODS: Routine MRI sequence and axial diffusion weighted sequence (b=800 s/mm2) were performed in 20 patients with cervical carcinoma and in 16 healthy women as control. The apparent diffusion coefficient (ADC) values of normal uterine cervix and cervical carcinoma were compared.
