{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [],
   "source": [
    "from sklearn.linear_model import LinearRegression"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "LinearRegression(copy_X=True, fit_intercept=True, n_jobs=None,\n",
       "         normalize=False)"
      ]
     },
     "execution_count": 2,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# 1.获取数据\n",
    "x = [[80, 86],\n",
    "[82, 80],\n",
    "[85, 78],\n",
    "[90, 90],\n",
    "[86, 82],\n",
    "[82, 90],\n",
    "[78, 80],\n",
    "[92, 94]]\n",
    "y = [84.2, 80.6, 80.1, 90, 83.2, 87.6, 79.4, 93.4]\n",
    "\n",
    "# 2.数据基本处理（略）\n",
    "# 3.特征工程（略）\n",
    "\n",
    "# 4.机器学习\n",
    "# 4.1 创建模型\n",
    "estimator = LinearRegression()\n",
    "\n",
    "# 4.2 训练模型\n",
    "estimator.fit(x, y)\n",
    "\n",
    "# 5.模型评估（略）"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "array([0.3, 0.7])"
      ]
     },
     "execution_count": 3,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# 获取回归系数\n",
    "estimator.coef_"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "-1.4210854715202004e-14"
      ]
     },
     "execution_count": 4,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# 获取偏置\n",
    "estimator.intercept_"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
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  "kernelspec": {
   "display_name": "Python 3",
   "language": "python",
   "name": "python3"
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  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
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   "file_extension": ".py",
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   "nbconvert_exporter": "python",
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