本文讨论了一种带参量的多项式回归拟合。
This paper studies a kind of regression fitting of polynomial with an additional parameter.
与传统回归拟合公式相比,该模型具有容错性好、通用性强等优点。
Compared with traditional regression fitting formula, the model has good fault tolerance, versatility and other advantages.
对实验数据进行回归拟合,建立了磷酸料浆过滤速度的经验数学模型。
Regressing and fitting the experimental datum, the aim is to establish an empirical mathematical model for filtration rate of phosphoric acid slurry.
再利用多元回归拟合的方法预测出06年一个书号代表的单位销售本数。
The unit sold book for each book number in 2006 was predicted by multivariable regression fitting method.
通过各类回归模型参数的比较,选择回归拟合程度最好的作为两者关系模型;
Through various types of regression model parameters and comparing, we choose the best regression fitting the degree of relationship as the model.
进而对结果进行多元非线性回归拟合,确定了尘土量与振动时间、频率因素的函数关系。
Afterwards the results are analyzed through nonlinear regression in order to get the function between the amount of dust particles and time of vibration and vibration frequency.
对工程实例地应力场的回归拟合计算表明,该方法回归拟合精度高,可广泛用于工程实践中。
The computation of practical engineering example shows this method is highly accurate, and can be used widely in practical engineering.
对工程实例地应力场的回归拟合计算表明,该方法回归拟合精度高,可广泛用于工程实践中。
The computation of practical engineering example shows this method is highly accurate, and can be used w...
通过回归分析,获得坝区试验点岩体的声波波速与变形模量的回归经验方程和高度显著的回归拟合曲线。
The empirical regression equations and high significance fitting curves of sound wave velocity and deformation modulus for test rock mass are got by regression analysis method.
借助经典的爆炸力学理论和回归拟合曲线方法,验证了爆炸空腔大小、应力波的应力峰值、应力波的作用时间。
The radium of blasting cavity, stress peak value and action time of stress waves are validated by the theory of classical explosion mechanics and the way of curve regression.
在回归拟合函数的基础上,引入马尔可夫链预测理论,建立了道路交通事故的“回归-马尔可夫”复合预测模型。
Based on the regression fitting and Markov chain forecast method, the "Regression-Markov" integration model for forecasting road accidents is built in this paper.
回归软件程序将样本点用图表示,并且给出最拟合样本点的直线的价值函数公式。
Regression software programs graph the sample points and give the (cost-function) formula of the straight line that best fits the points.
线性回归模型的拟合效果总体较差。
工程应用中通常用插值和回归(曲线拟合)解决函数表达式描述数据的问题。
Engineering applications, the interpolation and regression (curve fitting) function expression usually are used to describe data to solve the problem.
土壤入渗过程的回归方程表现为乘幂函数形式,回归系数R在0.88 ~ 0.99之间,方程拟合效果较好。
Soil permeability coefficients regression equation performs exponent relation. Regression coefficients were between 0.88 to 0.99, and the equation analog effect was good.
此外,用相关指数来检验曲线回归方程的拟合程度,而不采用在类似的研究中用相关系数来检验曲线回归这一不合适的方法。
Moreover, the fitting degree of curvilinear regression equation is tested by correlation index, in stead of correlation coefficient which has been unsuitably used for testing in similar works.
讨论用QR分解拟合回归方程时,参数估计和剩余的迭代加细算法。
Algorithms for iteratively refining the parameter estimates and residuals from the fitting of a regression model using QR decomposition are described.
本文首先略述用自回归模式去拟合平稳时间序列的各种方法;
The methods for fitting the autoregressive model to the stationary time series are briefly reviewed.
使用线性回归分析来求解坐标系拟合参数,从而得到最优化的效果。
We use linear regression analyses to get coordinate conversion parameter and make the result is optimal.
以激光粒度分析方法对矿渣微粉试样进行了颗粒群分布测试,并以RRS B线性回归进行拟合。
The distribution of powder clusters of finely ground slag was measured by means of laser granulometer and was modeled through RRSB linear regression.
结果表明,软件可以实现数据的不同方式拟合、多变量数据回归和未知实验数据点预测。
The data simulation in different manners, regression of multiple variables, and prediction of experimental data can be achieved by using of this software.
通过对模型进行回归分析,证明此模型具有良好的曲线拟合特性,模型精度较高。
Through regression analysis of models, this model proved to have good curve fitting characteristics, relatively high precision models.
对于非线性函数线性组合型相关方程,本文提出了交替运用非线性拟合和逐步线性回归分析相结合的方法一逐步非线性拟合。
A stepwise nonlinear fitting procedure was proposed to nonlinear fitting equations that USES Marquardt nonlinear fitting analysis and stepwise linear regression alternatively.
研究运用线性回归及曲线拟合手段推导投标报价模型的方法,并进一步运用模糊预测技术研究获取对手的竞标能力值。
Discuss the means of deducing bidding models by linear regression and curve fit method, and further more, acquire rivals' bidding competitive ratio with fuzzy forecasting technique.
利用模拟试验取得的数据,通过回归分析,拟合出不同场地条件下烟囱触地飞溅物距离的预测公式。
Through the regression analysis using the data from modeling tests, the formulae for predicting the spattering distances at different conditions of ground were fitted out.
本文用线性回归法拟合实验曲线,提高了汞原子第一激发电势的测量精度。
In this paper, the better measurement exactitudes of the first excitation potential of mercury atom were gotten by using the liner regression method in drawing up experiment curves.
编制了程序,能自动拟合回归方程。并进行方差分析和回归效果的显著性检验;
The program designed may imitate the . regression equation automatically, engage in variance analysis and significance test for regression effects.
我们怎样衡量我们的样本回归线拟合样本数据有多好呢?
How do we think about how well our sample regression line fits our sample data?
我们怎样衡量我们的样本回归线拟合样本数据有多好呢?
How do we think about how well our sample regression line fits our sample data?
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