c6_2b.dat

给定带有高斯噪声的三组样本,对其进行最小二乘拟合,并且绘图,求出误差协方差

  1.1736529e+000  3.3783790e+000
  4.0833542e+000  5.6300566e+000
  7.5546467e-001  4.2267199e+000
  2.9479928e+000  3.2445996e+000
  3.0277271e+000  9.5958876e+000
  2.3417682e+000  1.2408960e+000
  2.4375016e+000  6.2328568e+000
  5.0285771e+000  3.4856515e+000
  7.3419623e+000  2.9366229e+000
  2.2627075e+000  2.5468729e+000
  1.2080570e+000  3.5472218e+000
  2.1469289e+000  6.6820113e+000
  3.9320024e+000  3.5488405e+000
  4.3342684e+000  1.0187893e+001
  3.9191756e+000  1.0481318e+001
  2.8860739e+000  2.4654431e+000
  5.7930692e+000  2.0241862e+000
  1.8363077e+000  8.4191682e+000
  2.2032931e+000  5.0397717e+000
  2.5864540e+000  4.7503009e+000
  4.0772074e+000  5.7590073e+000
  2.1401641e+000  3.0218295e+000
  6.3070668e+000  8.4517708e+000
 -5.5626389e-001  2.8998854e+000
  7.3586249e+000  4.9407095e+000
  5.5701402e+000  3.4907178e+000
  2.9241365e+000  6.9404901e+000
  2.1217291e-001  5.1897085e+000
  8.4969012e+000  1.2026942e+000
  4.4285751e+000  2.9003157e+000
  3.6632959e+000  5.0794233e+000
  4.7878357e+000  1.0458245e+001
  1.4762956e+000  8.7189084e+000
  4.3852109e+000  5.9710219e+000
  6.5650312e+000  7.1367283e+000
  3.7998174e+000  6.3318185e+000
  4.5961886e+000  6.1150048e+000
  4.4559788e+000  1.0467710e+001
  3.5630670e+000  6.6146350e+000
  5.0480254e-001  8.4283803e+000
  5.8930844e+000 -9.8538227e-001
  3.8933383e+000  3.2732298e+000
  6.1970570e+000  3.1524601e+000
  2.7220548e+000  2.6655063e+000
  2.1705523e+000  6.2099972e+000
  2.4469488e+000  4.5972518e+000
  8.0761105e+000  3.0747478e+000
  2.6204368e+000  4.6279856e+000
  6.3710771e+000  4.0138814e+000
  4.0431175e+000  6.1474555e+000
  5.3067142e+000  6.0066580e+000
  3.9740750e+000  5.2112908e+000
  7.0717732e+000  1.6229292e+000
  3.7917522e+000  1.5430739e+000
 -2.7009965e+000  3.6597395e+000
  4.6207647e+000  5.8118637e+000
  3.3687627e+000  5.9797178e+000
  3.6779702e+000  2.1413235e+000
  3.1030735e+000  2.6838128e+000
  4.0593442e+000  6.3781628e+000
  2.3001591e+000  4.2301637e+000
  3.3941789e+000 -2.9024585e-001
  1.4628860e+000  4.7209558e+000
  5.8982246e+000  4.0398217e+000
  4.9941219e+000  6.6436917e-001
  3.8928885e+000  5.6974603e+000
  3.1387662e+000  2.0533024e+000
  5.4884976e+000  2.6448315e+000
  2.0967929e+000  2.6415363e+000
  3.4325393e+000  4.3542982e+000
  3.2588323e+000  7.9753474e+000
  4.8094508e+000 -1.0850543e+000
  2.7272168e+000  6.4937579e-001
  1.6286065e+000  7.5888431e+000
  4.5734099e+000  8.0025190e+000
  2.2224575e+000  3.0918007e+000
  1.0459973e+000  3.1328327e-001
  7.1091869e-001  4.9041853e+000
  4.3370922e+000  3.9430096e+000
  3.3696543e+000  1.4239883e+000
  1.9329357e+000  1.9380605e+000
  1.1063022e+000  1.9341776e+000
  3.1982567e+000  2.3845136e+000
  4.1479618e+000  4.4700487e+000
  1.2032308e+000  5.0410993e+000
  2.7893226e+000  2.2760661e+000
  4.9868068e+000  1.8715194e+000
  4.9281914e+000  1.1286780e+000
  2.2996796e+000  3.0773077e+000
  1.9925296e+000  6.2317667e+000
  4.0442288e+000 -2.6377441e-002
  7.3540485e+000  6.2513506e+000
  2.3656157e+000  5.8566403e+000
 -1.4684235e+000  5.3514779e+000
  2.7214356e+000 -5.0122206e-001
  1.1728610e+000  8.3233550e+000
  5.5623130e+000  5.7510816e+000
  3.5158204e+000  3.5624852e+000
 -2.6947935e+000  2.2700545e+000
  6.0846922e+000  5.0663351e+000