c6_2c.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

  7.5492079e+000  1.0620977e+001
  8.1607696e+000  1.0598210e+001
  6.1687992e+000  9.2661229e+000
  1.3135349e+001  1.2040221e+001
  1.1058460e+001  1.2367218e+001
  9.6813278e+000  1.1173820e+001
  1.2095694e+001  1.1241465e+001
  1.1320581e+001  1.2115202e+001
  1.3937079e+001  1.2511371e+001
  6.8804224e+000  9.5356675e+000
  8.7608769e+000  1.2501543e+001
  8.6004440e+000  1.0824598e+001
  6.4673257e+000  1.0056703e+001
  1.0153397e+001  1.1516516e+001
  8.9704554e+000  1.1005916e+001
  9.9226832e+000  1.1662746e+001
  1.1970353e+001  1.1982945e+001
  6.6072009e+000  9.9458064e+000
  1.2114531e+001  1.0836811e+001
  1.1271219e+001  1.1655820e+001
  6.8735378e+000  1.0373726e+001
  9.8465828e+000  1.1159011e+001
  1.0941306e+001  1.1455836e+001
  1.1591332e+001  1.0524295e+001
  9.0810303e+000  1.0796622e+001
  1.0380716e+001  9.7765605e+000
  1.1575467e+001  1.1973874e+001
  1.3218540e+001  1.1815922e+001
  8.2927422e+000  1.1187244e+001
  6.9132069e+000  1.0785602e+001
  6.3462743e+000  1.0417511e+001
  9.1749372e+000  1.0757610e+001
  6.6961403e+000  8.8377585e+000
  8.7053064e+000  1.0760201e+001
  1.1135232e+001  1.2802873e+001
  9.8030305e+000  1.1556357e+001
  7.9309963e+000  9.8885935e+000
  7.6136094e+000  1.0509756e+001
  8.4514913e+000  9.7877754e+000
  1.2474560e+001  1.2690219e+001
  6.7407438e+000  9.3621411e+000
  8.3915234e+000  1.1149385e+001
  8.1583974e+000  1.0090876e+001
  7.5862312e+000  9.0573423e+000
  1.1938430e+001  1.1338558e+001
  1.0428638e+001  1.0977113e+001
  1.1355538e+001  1.1344179e+001
  6.3168908e+000  1.0620114e+001
  1.1259721e+001  1.1471478e+001
  1.2481191e+001  1.2694100e+001
  7.3076836e+000  1.1762882e+001
  1.0778663e+001  1.0138952e+001
  8.8411858e+000  1.0332319e+001
  7.2113370e+000  1.1879355e+001
  1.0365174e+001  1.0793066e+001
  5.6222695e+000  1.0047016e+001
  8.8200261e+000  9.8920028e+000
  1.3357144e+001  1.1517489e+001
  9.7065446e+000  1.1505282e+001
  1.1899319e+001  1.3011867e+001
  7.5775045e+000  8.8738823e+000
  7.4152506e+000  1.0262429e+001
  9.5174872e+000  1.0997038e+001
  8.7884858e+000  1.0390757e+001
  5.5325134e+000  9.9077302e+000
  9.4774789e+000  1.1267616e+001
  1.1208303e+001  1.0966617e+001
  3.8563172e+000  9.5554704e+000
  7.3493176e+000  9.4324938e+000
  8.8485346e+000  1.0811411e+001
  6.0185770e+000  8.6639343e+000
  6.1098046e+000  9.7039462e+000
  9.5158039e+000  1.1216040e+001
  8.2579559e+000  1.0811156e+001
  1.2576107e+001  1.1481178e+001
  7.1082768e+000  9.1117334e+000
  8.4802150e+000  1.2143105e+001
  7.2646059e+000  1.1464126e+001
  8.0340392e+000  1.2221117e+001
  7.9968806e+000  1.0472785e+001
  9.8824603e+000  1.2058591e+001
  1.2797379e+001  1.2535572e+001
  1.0480960e+001  1.2436020e+001
  8.1028729e+000  1.0365958e+001
  6.2702436e+000  9.6017565e+000
  7.4641992e+000  1.0231210e+001
  8.3501536e+000  1.0479491e+001
  1.1065494e+001  1.1154013e+001
  6.9585425e+000  1.0396597e+001
  1.1132048e+001  1.2103721e+001
  4.5439472e+000  9.7676620e+000
  1.0166777e+001  9.9955879e+000
  8.6067648e+000  9.7693061e+000
  1.0009045e+001  1.1634441e+001
  1.0871045e+001  1.1077094e+001
  7.3713710e+000  9.8038901e+000
  8.7059229e+000  1.1108073e+001
  8.0799875e+000  1.0592468e+001
  1.0421791e+001  1.3120220e+001
  9.0242872e+000  1.0890971e+001