Curve-fitting is an art, and a whole article could easily be devoted to it, but look up help fit and the beginners_guide and tips sub-topics to get a start.
曲线拟合是一门艺术，需要用一整篇文章来讲述，但是请参阅helpfit和 beginners_guideandtips 来对它获得初步了解。
A four-parameter sine wave curve-fit method is intro - duced, which is based on the three-parameter sine wave curve-fit method and its an absolute convergent course.
介绍一种用三参数正弦波拟合算法实现的、绝对收敛的四参数最小二乘正弦波拟合算法，给出了其收敛区间、绝对收敛判据以及实现过程。
Applications and research status of signal distortion measurement are reviewed, and the curve-fit method and its applications in signal distortion measurement are introduced.
概述了失真度测量的应用和研究现状，介绍了基于曲线拟合法的失真度测量方法。
The uncertainty of evaluation results of delay between channels of linear measurement system by using the least mean square four-parameter sine-wave curve-fit method is described.
介绍了用正弦波拟合法评价测量系统通道间延迟时间差不确定度的分析和评定过程。
While the curve does not fit the data exactly, we can say that the data is a reasonable fit — however, we can see that a number of outliers are still present in the dataset.
当曲线不能精确地匹配数据时，我们可以说数据是有限匹配的 -但是，我们可以看到有一系列的异常值仍然在数据集之内。
When the dataset was fitted against a three parameter lognormal distribution curve, the data was a reasonable fit.
当数据集根据三参数分布曲线得到填充时，数据就是有限匹配的。
First, beware the managerial tendency to "over-fit the curve" — a statistical term that refers to the diminishing value of gathering additional data once you find a pattern.
首先，警惕管理层的“过拟合”倾向——统计学词汇“过拟合”指的是一旦模式已经发现，搜集更多数据的价值趋于下降。
"We take the wood piece by piece, fit them together in a curve, measure each piece and cut it," he said.
“我们把木料一块一块地按照曲线拼接起来，每块都是单独测量、单独切割出来的，”他说。
It first builds the model by using curve fitting toolbox to fit the unit input output curves, and then dispatch the load with the aid of optimization toolbox.
首先利用曲线拟合工具箱拟合机组的煤耗特性曲线进行建模，再使用优化工具箱进行负荷优化分配。
We may actually prefer the effect of averaging out questionable data points in a sample, rather than distorting the curve to fit them exactly.
我们往往宁愿得到一个近似的拟合，而不愿为了精确拟合数据而使拟合的曲线产生扭曲。
Least square method of polynomial or the method based on the given function are used to fit pump characteristic curve in pump selection or operation.
在水泵的选型或运行中，通常采用多项式的最小二乘法或根据假设的函数关系来拟合水泵性能曲线。
The essence of the gray prediction model is to fit the known data sequence with an exponent form to a curve, and then extend the curve to the future in order to predict the unknown data.
灰色系统预测模型的本质是对已知数据序列进行类型为指数形式的曲线拟合，然后将此曲线延伸到未来，由此对未知的数据做出预测。
On the basis of problems existed in fit for relation curve of water level and discharge, the relation curve of water level and discharge is fitted directment by immunization evolving algorithm.
分析了传统水位流量关系曲线拟合过程中存在的问题，在此基础上应用免疫进化算法直接拟合水位流量关系曲线。
Among most curve fit methods, grey model curve can be used to describe embankment settlement.
在众多的曲线拟合方法中，灰色模型曲线可以用来描述路基沉降。
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.
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。
A simple and useful evaluation method for the single scanning sampling rates of data acquisition system is presented. It utilizes the sinusoid curve fit method.
介绍了数据采集系统单扫描采集速率的一种简单实用的精确评价方法，即正弦波曲线拟合法。
Empirical results show that the proposed algorithm is suitable to any measured data and the extracting boundary data is precise which can be used to fit curve directly.
应用实例表明，算法的适用于任何测量点云，提取的边界数据精度高，可直接用于曲线拟合。
Sinusoid curve fit is a very useful method in precise measurement, based on the modeling measurement.
四参数正弦波拟合法是一种在精密测量中广泛使用的数学手段。
The method USES the DC component and the first harmonic of a curve's chain code expressed by Fourier series to fit the curve, avoiding the inverse calculation of an array used in general methods.
该方法利用闭合曲线的傅立叶级数表示的直流分量和一次分量实现对闭合曲线的椭圆拟合，可以避免通常椭圆拟合方法中的矩阵求逆问题。
How to control the temperature curve to fit with the properties of low melting point glass dust is very important to keep the product′s quality.
怎样依据低熔点玻璃膏的特性，控制一条保证产品质量的温度曲线是保证粘接质量、少出废品的关键。
When grey systematic theory at present set up GM (1 , 1 ), it assumes that fit curve passes the first point of modeling data to confirm the integral constant, thus obtained to forecast formula.
目前灰色系统理论在建立GM（1，1）模型时通常采用假定拟合曲线通过建模数据第一点来确定积分常数，从而得到预测公式的方法。
Finally the result given by experiment shows that the curve of adjusting focus is fit well with the ideal curve. Shooting the goal of the known movement orbit has reached the satisfactory result.
实验结果表明，本系统调焦曲线与理想曲线拟合度较好，拍摄已知运动轨迹的目标，达到了满意效果。
The drift characteristic of IRFPA is analyzed, and the drift curve is fit to compensate the energy drift.
分析了红外探测器的漂移特性，拟合漂移曲线并对探测器的能量漂移进行补偿。
A analytic function can be derived to fit the observed amplitude value curve.
根据观测振幅曲线，可以求出拟合此观测值的解析函数。
HHT has not been put forward for long time, so it contains some theoretical problems, such as envelop and mean curve fit, boundary effect, modes mix and so on.
HHT刚提出不久，其理论本身还存在不少问题，如包络线和均值曲线的拟合、边界效应和模态混叠等问题。
Welding temperature field was analyzed by using non-linear curve fit method based on experiments.
建立了一种基于试验的非线性曲线拟合的新方法来分析焊接温度场。
ConclusionThe growth rate of different age of silkworms was different, and polynomial curve could be used to fit the growth curve of silkworm.
结论桑蚕龄期内不同时段生长速度不一，多项式曲线可用来拟合桑蚕的生长曲线。
Through analysis of result of rheology test, an appropriate viscoelastic constitutive model has been found to fit the curve of stress-strain.
通过对流变试验结果的分析，找到了一种比较好的粘弹性本构关系来拟合流变试验曲线。
We detected the chopped light using this function and drawed the time-resolved curve by the plot program compiled by ourselves. The results fit with our design.
运用这一功能，对斩波光进行探测，并用自编绘图程序作出了其时间分辨曲线，实验结果与预计符合较好。
A statistical method is presented to fit coal consumption curve, which considers both history data and current data, and makes the curve closer to real unit.
在煤耗特性曲线的拟合上，提出了一种加权统计方法，综合考虑历史数据和当前数据对煤耗特性的影响，使曲线更真实的反映机组的实际状况。
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