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330319740金虫 (初入文坛)
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[求助]
３自变量，１因变量非线性拟合
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请教各位大神： １个因变量y,３个自变量，X1，X2，X3，想要拟合出y与X1，X2，X3之间的函数关系式，具体的表达形式也不清楚， 可以用什么软件？本人新手一枚具体怎么操作？该怎么编程？具体数据如下： Ｘ１ Ｘ２ Ｘ３ Ｙ 0.000003 2000000000 0.7 2139926.6 0.000003 2000000000 1 2624232.4 0.000003 2000000000 1.5 3261614 0.000003 2000000000 2 3752621.9 0.000003 2000000000 2.5 4143299 0.000003 2000000000 3 4462181.6 0.000003 4000000000 0.7 2546893.4 0.000003 4000000000 1 3018004.1 0.000003 4000000000 1.5 3639406.1 0.000003 4000000000 2 4118926.6 0.000003 4000000000 2.5 4501024.6 0.000003 4000000000 3 4812716.5 0.000003 5000000000 0.7 2743806.6 0.000003 5000000000 1 3208539.4 0.000003 5000000000 1.5 3822066.4 0.000003 5000000000 2 4296074.8 0.000003 5000000000 2.5 4673757.9 0.000003 5000000000 3 4982343.5 0.000003 6000000000 0.7 2936321.3 0.000003 6000000000 1 3394776.1 0.000003 6000000000 1.5 4000573.3 0.000003 6000000000 2 4469115.9 0.000003 6000000000 2.5 4842750.1 0.000003 6000000000 3 5147843.8 0.000003 7000000000 0.7 3124355.9 0.000003 7000000000 1 3576748.8 0.000003 7000000000 1.5 4175255.8 0.000003 7000000000 2 4638305.3 0.000003 7000000000 2.5 5007945.4 0.000003 7000000000 3 5310045.3 0.000003 9000000000 0.7 3487483.2 0.000003 9000000000 1 3928300.5 0.000003 9000000000 1.5 4512509.3 0.000003 9000000000 2 4965378.7 0.000003 9000000000 2.5 5327180.3 0.000003 9000000000 3 5623092.8 0.0000035 2000000000 0.7 2236642.6 0.0000035 2000000000 1 2722377.3 0.0000035 2000000000 1.5 3361603.6 0.0000035 2000000000 2 3853970 0.0000035 2000000000 2.5 4245675.1 0.0000035 2000000000 3 4565082.3 0.0000035 4000000000 0.7 2732559 0.0000035 4000000000 1 3206704.7 0.0000035 4000000000 1.5 3831810.4 0.0000035 4000000000 2 4313940.4 0.0000035 4000000000 2.5 4697811.7 0.0000035 4000000000 3 5011336.7 0.0000035 5000000000 0.7 2971704.2 0.0000035 5000000000 1 3440191.1 0.0000035 5000000000 1.5 4058325.5 0.0000035 5000000000 2 4535360.3 0.0000035 5000000000 2.5 4915739.1 0.0000035 5000000000 3 5225973 0.0000035 6000000000 0.7 3205032.5 0.0000035 6000000000 1 3667956.5 0.0000035 6000000000 1.5 4279253 0.0000035 6000000000 2 4751642.1 0.0000035 6000000000 2.5 5128091.2 0.0000035 6000000000 3 5435725.7 0.0000035 7000000000 0.7 3432686.5 0.0000035 7000000000 1 3890161.9 0.0000035 7000000000 1.5 4494848.5 0.0000035 7000000000 2 4962362 0.0000035 7000000000 2.5 5335472.9 0.0000035 7000000000 3 5640107.2 0.0000035 9000000000 0.7 3871524.7 0.0000035 9000000000 1 4318692.7 0.0000035 9000000000 1.5 4910569.8 0.0000035 9000000000 2 5368960.8 0.0000035 9000000000 2.5 5735245.4 0.0000035 9000000000 3 6034533.6 0.000004 2000000000 0.7 2333555.6 0.000004 2000000000 1 2820680.1 0.000004 2000000000 1.5 3461597.1 0.000004 2000000000 2 3955318.2 0.000004 2000000000 2.5 4348051.1 0.000004 2000000000 3 4668037.6 0.000004 4000000000 0.7 2918749.4 0.000004 4000000000 1 3395900.3 0.000004 4000000000 1.5 4024560 0.000004 4000000000 2 4509365.4 0.000004 4000000000 2.5 4895353.9 0.000004 4000000000 3 5210015 0.000004 5000000000 0.7 3200247.7 0.000004 5000000000 1 3672468 0.000004 5000000000 1.5 4295139.2 0.000004 5000000000 2 4775564.9 0.000004 5000000000 2.5 5158127.7 0.000004 5000000000 3 5470619.6 0.000004 6000000000 0.7 3474563.6 0.000004 6000000000 1 3941933.9 0.000004 6000000000 1.5 4558710 0.000004 6000000000 2 5034832.9 0.000004 6000000000 2.5 5414420.1 0.000004 6000000000 3 5724142.8 0.000004 7000000000 0.7 3741928.6 0.000004 7000000000 1 4204534 0.000004 7000000000 1.5 4815488.7 0.000004 7000000000 2 5287645.1 0.000004 7000000000 2.5 5663807.4 0.000004 7000000000 3 5971258.7 0.000004 9000000000 0.7 4256831.5 0.000004 9000000000 1 4710413.3 0.000004 9000000000 1.5 5310137.3 0.000004 9000000000 2 5774261.2 0.000004 9000000000 2.5 6144663.4 0.000004 9000000000 3 6447225.3 0.0000045 2000000000 0.7 2430710 0.0000045 2000000000 1 2919210.7 0.0000045 2000000000 1.5 3561923.7 0.0000045 2000000000 2 4056736.8 0.0000045 2000000000 2.5 4450427.2 0.0000045 2000000000 3 4771445.3 0.0000045 4000000000 0.7 3105480.8 0.0000045 4000000000 1 3585585.5 0.0000045 4000000000 1.5 4217875.5 0.0000045 4000000000 2 4705184.5 0.0000045 4000000000 2.5 5093058.6 0.0000045 4000000000 3 5409638.6 0.0000045 5000000000 0.7 3429488.7 0.0000045 5000000000 1 3905417 0.0000045 5000000000 1.5 4532596.4 0.0000045 5000000000 2 5016303.1 0.0000045 5000000000 2.5 5401451.8 0.0000045 5000000000 3 5715543.1 0.0000045 6000000000 0.7 3744965.1 0.0000045 6000000000 1 4216810.9 0.0000045 6000000000 1.5 4839011.2 0.0000045 6000000000 2 5318953.8 0.0000045 6000000000 2.5 5701344.8 0.0000045 6000000000 3 6013517.6 0.0000045 7000000000 0.7 4052273.7 0.0000045 7000000000 1 4520117.1 0.0000045 7000000000 1.5 5137266.2 0.0000045 7000000000 2 5613923.2 0.0000045 7000000000 2.5 5993604.2 0.0000045 7000000000 3 6303720 0.0000045 9000000000 0.7 4643515.9 0.0000045 9000000000 1 5103532.2 0.0000045 9000000000 1.5 5711303.4 0.0000045 9000000000 2 6181065.9 0.0000045 9000000000 2.5 6555622.9 0.0000045 9000000000 3 6861462.3 0.000005 2000000000 0.7 2528105.1 0.000005 2000000000 1 3017903.7 0.000005 2000000000 1.5 3662250.4 0.000005 2000000000 2 4158487.8 0.000005 2000000000 2.5 4553035 0.000005 2000000000 3 4874853.1 0.000005 4000000000 0.7 3292846.8 0.000005 4000000000 1 3775865.3 0.000005 4000000000 1.5 4411714.7 0.000005 4000000000 2 4901626.8 0.000005 4000000000 2.5 5291481 0.000005 4000000000 3 5609262.2 0.000005 5000000000 0.7 3659557.2 0.000005 5000000000 1 4139206.4 0.000005 5000000000 1.5 4770775.7 0.000005 5000000000 2 5257613.5 0.000005 5000000000 2.5 5645145.8 0.000005 5000000000 3 5961425.7 0.000005 6000000000 0.7 4016417 0.000005 6000000000 1 4492724.9 0.000005 6000000000 1.5 5120241.4 0.000005 6000000000 2 5604119.5 0.000005 6000000000 2.5 5989386.2 0.000005 6000000000 3 6303871.1 0.000005 7000000000 0.7 4363831.7 0.000005 7000000000 1 4836812.5 0.000005 7000000000 1.5 5460260.7 0.000005 7000000000 2 5941327.6 0.000005 7000000000 2.5 6324466.7 0.000005 7000000000 3 6637050 0.000005 9000000000 0.7 5031865.2 0.000005 9000000000 1 5498461.9 0.000005 9000000000 1.5 6114149.2 0.000005 9000000000 2 6589510.1 0.000005 9000000000 2.5 6968290.9 0.000005 9000000000 3 7277784 0.000006 2000000000 0.7 2723735.9 0.000006 2000000000 1 3215887.1 0.000006 2000000000 1.5 3863527 0.000006 2000000000 2 4362172.7 0.000006 2000000000 2.5 4758700.9 0.000006 2000000000 3 5081827.5 0.000006 4000000000 0.7 3669871.4 0.000006 4000000000 1 4158246.1 0.000006 4000000000 1.5 4800941.5 0.000006 4000000000 2 5295794.7 0.000006 4000000000 2.5 5689525.5 0.000006 4000000000 3 6010340.9 0.000006 5000000000 0.7 4122807 0.000006 5000000000 1 4609354.7 0.000006 5000000000 1.5 5249572.4 0.000006 5000000000 2 5742746.3 0.000006 5000000000 2.5 6135090.2 0.000006 5000000000 3 6454905.6 0.000006 6000000000 0.7 4563198.6 0.000006 6000000000 1 5047865.5 0.000006 6000000000 1.5 5685780.1 0.000006 6000000000 2 6177273.4 0.000006 6000000000 2.5 6568289.4 0.000006 6000000000 3 6887148 0.000006 7000000000 0.7 4991629.4 0.000006 7000000000 1 5474530 0.000006 7000000000 1.5 6110175.4 0.000006 7000000000 2 6599966.3 0.000006 7000000000 2.5 6989707.8 0.000006 7000000000 3 7307648.4 0.000006 9000000000 0.7 5814744.9 0.000006 9000000000 1 6294115.7 0.000006 9000000000 1.5 6925418 0.000006 9000000000 2 7411991.2 0.000006 9000000000 2.5 7799325.3 0.000006 9000000000 3 8115532.8 |
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