Matlab二元函數(shù)擬合

表格一表格一數(shù)據(jù)整理ρ1為密度，ρ2為干密度，s為含沙量，w為含水量s=[000000,202020202020,404040404040,606060606060,707070707070,80808080100,100100100];w=[1011.513.5152025,1011.513.5152025,1011.513.5152025,1011.513.5152025,1011.513.5152025,1011.513.51510,11.513.515];ρ1=[1.461.5161.5891.641.871.84,1.7321.7651.8271.8961.9121.91,1.7851.9242.0362.0332.0591.967,2.0332.1412.152.1642.1032.138,2.0682.212.2422.2342.1412.204,2.0342.1852.1792.1861.652,1.6541.6411.643]’;%密度ρ2=[1.331.361.41.4251.5581.47,1.5741.5831.611.6491.5931.528,1.6231.7261.7941.7671.7161.574,1.8481.921.8941.8821.7521.71,1.881.9821.9751.9431.7841.763,1.8491.961.921.91.502,1.4831.4461.429]’;%干密度表格一模擬結(jié)果b1=0.98470.01880.0663-0.0002-0.0016stats1=0.759726.07750.00000.0138b2=1.08260.01650.0417-0.0001-0.0014stats2=0.739123.36650.00000.0111故密度ρ1與含砂量S和含水率W的關(guān)系式回歸模型為：與F對應(yīng)的概率p=0.0138＜0.05，故而拒絕H0，回歸模型成立。同理，干密度ρ2與含砂量S和含水率W的關(guān)系式回歸模型為：與F對應(yīng)的概率p=0.0111＜0.05，故而拒絕H0，回歸模型成立。函數(shù)說明：此處，插入擬合圖片。打開文件qiumoqing1.m并運(yùn)行，即可得到。表格二表格二數(shù)據(jù)整理ρ1為密度，ρ2為干密度，s為含沙量，w為含水量s=[000000202020202020404040404040,606060606060707070707070];w=[1011.513.5152025,1011.513.5152025,1011.513.5152025,1011.513.5152025,1011.513.5152025];ρ1=[1.461.5161.5891.641.871.84,1.7321.7651.8271.8961.9121.91,1.7851.9242.0362.0332.0591.967,2.0332.1412.152.1642.1032.138,2.0682.212.2422.2342.1412.204]’;ρ2=[1.331.361.41.4251.5581.47,1.5741.5831.611.6491.5931.528,1.6231.7261.7941.7671.7161.574,1.8481.921.8941.8821.7521.71,1.881.9821.9751.9431.7841.763]’;表格二模擬結(jié)果b1=0.96120.00880.0771-0.0000-0.0019stats1=0.911764.56270.00000.0048b2=1.06300.00780.0510-0.0000-0.0016stats2=0.894252.81360.00000.0043故密度ρ1與含砂量S和含水率W的關(guān)系式回歸模型為：與F對應(yīng)的概率p=0.0048＜0.05，故而拒絕H0，回歸