摘 要
多元回歸分析是一種重要的統(tǒng)計分析方法,但復雜的計算給分析方法的推廣應用帶來困難。本文通過一個案例(應用Matlab預測員工工資)系統(tǒng)探討了回歸方法建模的全過程,介紹如何利用MATLAB軟件建立初步的回歸方程、解讀輸出結果以及如何對模型進行精細分析和改進。最后還研究了含有交叉項的回歸方程如何通過逐步回歸求解。我的方法是選用MATLAB的回歸分析來優(yōu)化分析此問題。
關鍵詞:MATLAB軟件 回歸分析 數(shù)學建模
Matlab in the forecast employees wages Application
Abstract
Multiple regression analysis is an important method of statistical analysis, but the complex calculations to the promotion and application of analytical methods difficult. In this paper, a case (of MATLAB enterprises forecast the risks and benefits) system on the return of the entire process of modeling methods on how to use the MATLAB software establish a preliminary regression equation, output results and how to interpret the model precise analysis and improvement. Finally, on cross-item containing the regression equation for how to gradually return。