摘要
先用最小二乘法建立了某一地区土壤内所含可给态磷浓度的数学模型；然后对该模型进行了假设检验,从而说明了该模型的合理性；最后利用该模型研究了预测问题和控制问题。
Firstly,one established a mathematical model for available phosphorus density in the soil of some district with the least squares method in the paper. Secondly, one investigated the hypothesis testing for the model, therefore the model is reasonable. Finally,one studied how to forecast and how to control the phosphorus density in the soil.
出处
《湖北师范学院学报（自然科学版）》
2006年第1期91-96,共6页
Journal of Hubei Normal University(Natural Science)
关键词
最小二乘法
三元线性回归模型
假设检验
预测
控制
least squares method
ternary linear regression model
hypothesis testing
forecast
control
