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《Journal of Daqing Normal University》 2010-06
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Comparison and Analysis of Three Order being Ssuitable for Data Fitting in MATLAB

YANG Hong,LIN Da-wei,ZHANG Hong-li ( College of Arts and Science,Heilongjiang Bayi Agricultural University,Daqing 163319,China)  
This paper bases on least squares for data fitting three orders nlinfit ( ) ,lsqnonlin ( ) ,lsqcurvefit ( ) are studied,and presents some practical examples. In these three orders through examples of differences in concrete analysis for our practice according to different purpose to choose the appropriate data fitting method,fast and accurate data fitting,solve the problems between the established mathematical model of variable has certain directive significance.
【Fund】: 黑龙江省高等学校教学改革工程项目:信息与计算科学专业课程体系的建设与应用型人才培养的研究
【CateGory Index】: O241.5
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