哪位兄弟姐妹给我用MATLAB拟合一下2条曲线
来源:百度知道 编辑:UC知道 时间:2024/06/21 14:19:41
我现在公司电脑没装MATLAB,但我急需这些数据
X=0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
Y=
0.218772256
0.452159579
0.698768772
0.947174474
1.16618188
1.397340824
1.599741011
1.811457246
2.017842197
2.212189411
2.403246626
2.573370569
2.777667185
2.941727999
3.116560936
3.271402413
3.404494439
3.546954633
3.685894442
第二个是X=
6
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9
7
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
8
8.1
8.2
8.3
8.4
8.5
8.6
8.7
8.8
8.9
9
9.1
9.2
9.3
9.4
9.5
9.6
9.7
9.8
9.9
10
10.1
10.2
10.3
10.4
Y=
6.290570862
6.31848
X=0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
Y=
0.218772256
0.452159579
0.698768772
0.947174474
1.16618188
1.397340824
1.599741011
1.811457246
2.017842197
2.212189411
2.403246626
2.573370569
2.777667185
2.941727999
3.116560936
3.271402413
3.404494439
3.546954633
3.685894442
第二个是X=
6
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9
7
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
8
8.1
8.2
8.3
8.4
8.5
8.6
8.7
8.8
8.9
9
9.1
9.2
9.3
9.4
9.5
9.6
9.7
9.8
9.9
10
10.1
10.2
10.3
10.4
Y=
6.290570862
6.31848
X=[0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9];
Y=[
0.218772256
0.452159579
0.698768772
0.947174474
1.16618188
1.397340824
1.599741011
1.811457246
2.017842197
2.212189411
2.403246626
2.573370569
2.777667185
2.941727999
3.116560936
3.271402413
3.404494439
3.546954633
3.685894442];
%%%直线拟合
polyfit(X,Y,1)
得到:
ans =
1.9337 0.1844
即Y=1.9337*X+0.1844
========================================
X=[
6
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9
7
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
8