曲线回归

According to the daily observation of saturation line, the water level of observation well and reservoir water level curves are attained by polynomial regression analysis.

运用多项式回归分析浸润线观测数据，拟合得出浸润线观测孔水位与库水位的函数曲线，求得尾矿坝浸润线矩阵。

The results indicated that regression curve was Y=47 741X+531.19,r = 0.999 9; the precision:average peak area 11 182.42,RSD 0.479 6%n=6

该制剂的回归曲线为Y=47 741X+531.19，r=0.999 9。精密度：测得平均峰面积为11 182.42，RSD为

The article introduces the thermal decomposition kinetics of potassium oxalate-hydrogen peroxide in nitrogen, using the programmed temperature method and NETZSCH STA409 PC/PG Comprehensive Thermal Analyzer, measures the sample's TG and DSC curves in the condition of different heating rates in nitrogen, and analyses the kinetics model of thermal decomposition by the multiple nonlinear regression.

利用程序升温法在NETZSCH STA409 PC/PG综合热分析仪上研究了草酸钾－过氧化氢在氮气氛围中的热分解动力学，测定了样品在氮气中不同升温速率下的TG和DSC曲线，采用多元非线性回归对其热分解动力学模型进行了筛选研究。

Based on the research results of domestic and foreign experts, the article uses fitting induction to draw the relation curve of speed and density of the passenger flow at the loading areas and upward stairs of Beijing Subway Line 1, and produces the suitable mathematic model by regression.

在借鉴国内外学者研究成果的基础上，本文拟合归纳出北京地铁1号线站台集散区和上行楼梯处客流速度与密度理论关系曲线，回归出得到相应数学模型。

Based on the data of Larch in eastern region of Daxinganling,the single entry volume table of Larch is established by using artificial neural networks and regression analysis.

采用大兴安岭东部落叶松Larch的材料，分别运用人工神经网络和回归分析方法编制了落叶松的一元材积表，人工神经网络在拟合过程中以落叶松胸径作为输入向量，以单株材积作为输出向量，并选出既符合林木材积曲线分布规律，又具有较高拟合准确度的网络模型，其网络结构为1∶2∶1，网络对象名为Enet。

Based on the survey of the traffic flow in Changchun city arteries, the scatter charts of vehicle speed-low data were plotted, the linear regression equations of scatter plots and their boundaries were derived and compared with the curve of Greenshields speed-flow model and the scatter plot of the freeway data, thus the speed-low characteristics in urban arteries were established, being of help for the traffic managers to determine the traffic signal control strategy.

以长春市干线道路的交通流实测数据为依据，绘制了速度流量的散点图，建立了散点图及边界的线性回归方程，并与Greenshields速度流量理论模型曲线、高速公路的速度-流量散点图进行了对比，分析了城市道路的速度-量特性。实际应用表明，该特性分析能为交通管理者确定信号控制策略提供速度流量依据。

MR images was analyzed include tumor shape,margin, internal enhancement characteristics,distribution,and time-signal intensity curves,maximam enhancement ratio,early enhancement ratio and so on.The ADCs of lesions were calculated on ADC maps.Univariate and multivariate analysis of MR imaging data were performed to find the strongest discriminators and the Logestic regression model was established to predict the probabilities for malignancy.

由放射科医生采用双盲法阅片，根据乳腺MR影像报告及数据系统(BI-RADS MRI)，将病变按照不同形态学表现分为肿块和非肿块性病变两组，分析形态学表现(形状、边缘、分布特征、内部增强特征)、血流动力学表现(时间-信号强度曲线类型、最大增强率、达峰时间、早期增强率)，并结合ADC值，应用SPSS15.0软件进行单变量及多变量分析，挖掘有意义恶性征象，建立回归模型，计算其敏感性、特异性、准确性、阳性预测值和阴性预测值。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。