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1)  the least squares means
最小二乘分析
1.
Based on the fixed effect model,the least squares means of the total number borns,the number born alive,the litter weight at birth and the litter weight adjusted to 21-day-old were estimated to analyze the effect of parity,season and breed on reproductive performance.
对纯种长白猪、大白母猪、杜洛克猪的5 505窝繁殖资料进行调查分析,建立固定效应模型对总产仔数、产活仔数、初生窝重及21日龄断奶窝重的资料进行最小二乘分析,着重讨论胎次、分娩季节、品种等固定效应对母猪繁殖性能的影响。
2)  partial least squares (PLS)
偏最小二乘分析(PLS)
3)  least squared method regression analysis
最小二乘法回归分析
1.
According to the gathered operation data of feed water pump driven by steam turbine,the characteristic parameters of feed water pump was thesis calculated by the thermodynamics method theorem inferred by ISO5198,and the characteristic curves was got by the least squared method regression analysis.
根据现场采集的汽动给水泵运行数据,利用ISO5198中提出的热力学方法计算得出了给水泵的各项运行性能参数,又通过最小二乘法回归分析得到运行中锅炉给水泵的性能曲线。
4)  partial least-squares regression
偏最小二乘回归分析
1.
Residential electricity consumption load forecasting based on dynamic clustering and partial least-squares regression;
基于动态聚类与偏最小二乘回归分析的居民用电负荷预测
5)  least squares methods/analytic hierarchy procss
最小二乘法/层次分析法
6)  partial least squares path modeling analysis
偏最小二乘路径分析
补充资料:非线性最小二乘拟合
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性质:用最小二乘法拟合非线性方程。有些变量之间的非线性模型,通过变量变换可以化为线性模型,此称为外在线性。而有些变量之间的非线性模型,通过变量变换不能化为线性模型,通称为内在非线性。对于非线性模型y=f(ξ,θ)+ε,其残差平方和。S(θ)是θ的函数,当模型关于θ是非线性的,正规方程关于θ也是非线性的。基于使残差平方和s(θ)达到极小的原理求出θ的估计值,拟合非线性回归方程。

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