回归方程

The former two accorded with exponential function equation,and the latter power function equation.

前两者以指数函数类型建立的回归方程最好，后者以幂函数类型建立的回归方程最好。

The linear regression of the three factors—seed diameter, length of friction and gear gap to the hulling efficiency was determined and the significance of the regression equation was tested.

通过以籽粒粒径、碾搓行程和破壳装置动、定齿盘间隙为研究对象的三因素三水平重复试验，得出了此三者与破壳效果间的线性回归方程，并做了回归方程的显著性检

A regression equation =3.5 AFI+123 obtained by regression analysis was positively correlated with the prognostication of oligohydramnios.

进行回归分析得到回归方程，该方程与羊水过少的阳性预测有很好的相关性。

Stepwise regression analysis was adopted to estimate the relationship between the pharmacological data and compatibility.

所得数据通过计算机拟和，分别给出了胃酸、胃蛋白酶、胃粘液结合量、胃排空及小肠推进率的回归方程，从回归方程中可以较清楚地看到方中各药味与效应学指标的关联度以及药味之间的交互作用对药效的影响。

In the model of two dimensions, an equation of dosage-mortality linear regression ofBxs or Mf2 for the 3 instars larva has been established and LC50 has been estimated.

二维模型：建立了Bxs、Mf2菌株对3龄幼虫的剂量-死亡率直线回归方程并估算出LC50，以及Bxs、Mf2菌株分别在1×108、1×107、0.5×107、1×106、0.5×106、1×105和1×104孢子/ml浓度下对3龄幼虫的时间-死亡率直线回归方程和LT50。

Variance and correlation of the data was analyzed with SPSS software. It was found that height, width, and thickness are main factors influencing paper angle bead compressive strength; moreover there are linear relations between the height, the width, and the thickness of paper angle bead and the compressive strength, and the error of equation is ±3%.

通过SPSS软件对数据进行方差及相关性分析，确定了纸护角的高度、宽度、厚度是影响纸护角抗压性能的主要因素，并且高度、宽度、厚度值与纸护角抗压强度之间呈线性相关；最后利用SPSS的线性回归分析，得到纸护角的抗压性能与高度、宽度、厚度之间的线性回归方程，对方程进行验证，其误差为±3%。

To estimate the bioconcentration factor of benzene derivatives in fish by gas chromatography retention time, this paper measured the BCF of chlorobenzene, o-chloro-toluene, p-dichlorobenzene, m-dichlorobenzene, 1,2-dichlorobenzene, nitrobenzene, p-chloro-aniline, p-chloro-nitrobenzene, and 4-chlorodiphenyl in grass crap, and the t_R of test derivatives on the stationary phases of six kinds polarity.

为了用气相色谱保留时间估算取代苯类化合物在鱼体内的生物富集系数，测定了草鱼对氯苯、邻氯甲苯、对二氯苯、间二氯苯、邻二氯苯、硝基苯、对氯苯胺、对硝基氯苯、4-氯联苯9种取代苯类化合物的BCF和不同取代苯化合物在6种不同极性固定相上的tR，建立了tR与BCF的一元回归方程及tR一阶分子连接性指数(1XV)与BCF的二元回归估算方程。

In practical work, we can fit the empirical equation of regression according to least square method when we use the old data, and needs to make the Real-time treatment for new acquired data in the light of the equation, namely, we need combine new acquired data with the original data, then infer the new empirical equation of regression.

在实际工作中，当我们用旧数据根据最小二乘法拟合出经验回归方程后，常常获得一些新的数据，需要对新获得的数据进行实时处理，即要把它和原有数据结合在一起算出新的经验回归方程。

And then high performance liquid chromatography method was used to delect the blood plasma concentration of Ivermectin and Albendozale with Dual λ Absorbance Detector at the same time, which have the good lineal relation in the range of 40-640ng/ml, the equation of Ivermectin is y=0.0077+0.0117C (r=0.9994), Albendozale is Y=0.0578+0.0027C (r=0.9680). With the same method the recovery of Ivermectin and Albendozale in blood plasma concentration 60. 240. 480ng/ml were 93.5%.

然后用HPLC方法采用双波长检测器同时测定伊维菌素和阿苯达唑的血浆药物浓度，伊维菌素和阿苯达唑在40-640ng／ml范围内线性关系良好，伊维菌素的回归方程为Y=0.0077+0.0117C(r=0.9994)，阿苯达唑的回归方程为Y=0.0578+0.0027C(r=0.9680)，并测定了阿苯达唑和伊维菌素在60、240、480ng／ml的回收率分别为94.2％、97.6％、101.40％和93.5％、98.3％、98.7％，表明回收率较高。

The author used to solve the linear matrix method to simulate the equations of quadratic regression equation work curve with only a few simple mathematical expressions for the second straight three coefficient regression equations, received the good effect.

作者用矩阵法求解线性方程组的方法来模拟工作曲线的二次回归方程，仅用几个简单的数学表达式就直接求得了二次回归方程的三系数，收到了很好的效果。

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。