diff --git a/AIandML/e1_python_basics/e1.0_python.ipynb b/AIandML/e1_python_basics/e1.0_python.ipynb
index 7952002..d07eff5 100644
--- a/AIandML/e1_python_basics/e1.0_python.ipynb
+++ b/AIandML/e1_python_basics/e1.0_python.ipynb
@@ -10,7 +10,7 @@
     "\n",
     "|学号       |姓名    |\n",
     "|----------|--------|\n",
-    "|***REMOVED***|***REMOVED***|"
+    "|***REMOVED***|江一和|"
    ]
   },
   {
@@ -26,7 +26,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 42,
+   "execution_count": 43,
    "metadata": {},
    "outputs": [
     {
@@ -63,16 +63,14 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": 44,
    "metadata": {},
    "outputs": [
     {
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "['Linus Torvalds', 'Richard Stallman', 'Greg Kroah-Hartman']\n",
-      "['Greg Kroah-Hartman', 'Linus Torvalds', 'Richard Stallman']\n",
-      "['Greg Kroah-Hartman', 'Linus Torvalds', 'Richard Stallman', 'Albert Einstein']\n"
+      "['Linus Torvalds', 'Richard Stallman', 'Greg Kroah-Hartman']\n"
      ]
     }
    ],
@@ -83,9 +81,17 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 45,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "['Greg Kroah-Hartman', 'Linus Torvalds', 'Richard Stallman']\n"
+     ]
+    }
+   ],
    "source": [
     "names.sort()\n",
     "print(names)"
@@ -93,9 +99,17 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 46,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "['Greg Kroah-Hartman', 'Linus Torvalds', 'Richard Stallman', 'Albert Einstein']\n"
+     ]
+    }
+   ],
    "source": [
     "names.append(\"Albert Einstein\")\n",
     "print(names)"
@@ -103,7 +117,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 6,
+   "execution_count": 47,
    "metadata": {},
    "outputs": [
     {
@@ -129,7 +143,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 11,
+   "execution_count": 48,
    "metadata": {},
    "outputs": [
     {
@@ -160,7 +174,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 12,
+   "execution_count": 49,
    "metadata": {},
    "outputs": [
     {
@@ -198,7 +212,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 15,
+   "execution_count": 50,
    "metadata": {},
    "outputs": [
     {
@@ -242,7 +256,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 34,
+   "execution_count": 51,
    "metadata": {},
    "outputs": [
     {
@@ -294,7 +308,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 35,
+   "execution_count": 52,
    "metadata": {},
    "outputs": [
     {
@@ -333,7 +347,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 36,
+   "execution_count": 53,
    "metadata": {},
    "outputs": [
     {
@@ -373,7 +387,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 39,
+   "execution_count": 54,
    "metadata": {},
    "outputs": [
     {
@@ -400,7 +414,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 40,
+   "execution_count": 55,
    "metadata": {},
    "outputs": [
     {
diff --git a/AIandML/e1_python_basics/e1.3_pandas.ipynb b/AIandML/e1_python_basics/e1.3_pandas.ipynb
index 66993ec..7d8a552 100644
--- a/AIandML/e1_python_basics/e1.3_pandas.ipynb
+++ b/AIandML/e1_python_basics/e1.3_pandas.ipynb
@@ -23,7 +23,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
+   "execution_count": 26,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -44,7 +44,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 4,
+   "execution_count": 27,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -60,7 +60,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 9,
+   "execution_count": 28,
    "metadata": {},
    "outputs": [
     {
@@ -100,101 +100,108 @@
        "  </thead>\n",
        "  <tbody>\n",
        "    <tr>\n",
-       "      <th>886</th>\n",
-       "      <td>887</td>\n",
-       "      <td>0</td>\n",
-       "      <td>2</td>\n",
-       "      <td>Montvila, Rev. Juozas</td>\n",
-       "      <td>male</td>\n",
-       "      <td>27.0</td>\n",
-       "      <td>0</td>\n",
-       "      <td>0</td>\n",
-       "      <td>211536</td>\n",
-       "      <td>13.00</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>S</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>887</th>\n",
-       "      <td>888</td>\n",
+       "      <th>0</th>\n",
        "      <td>1</td>\n",
-       "      <td>1</td>\n",
-       "      <td>Graham, Miss. Margaret Edith</td>\n",
-       "      <td>female</td>\n",
-       "      <td>19.0</td>\n",
-       "      <td>0</td>\n",
-       "      <td>0</td>\n",
-       "      <td>112053</td>\n",
-       "      <td>30.00</td>\n",
-       "      <td>B42</td>\n",
-       "      <td>S</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>888</th>\n",
-       "      <td>889</td>\n",
        "      <td>0</td>\n",
        "      <td>3</td>\n",
-       "      <td>Johnston, Miss. Catherine Helen \"Carrie\"</td>\n",
-       "      <td>female</td>\n",
-       "      <td>NaN</td>\n",
+       "      <td>Braund, Mr. Owen Harris</td>\n",
+       "      <td>male</td>\n",
+       "      <td>22.0</td>\n",
        "      <td>1</td>\n",
-       "      <td>2</td>\n",
-       "      <td>W./C. 6607</td>\n",
-       "      <td>23.45</td>\n",
+       "      <td>0</td>\n",
+       "      <td>A/5 21171</td>\n",
+       "      <td>7.2500</td>\n",
        "      <td>NaN</td>\n",
        "      <td>S</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>889</th>\n",
-       "      <td>890</td>\n",
+       "      <th>1</th>\n",
+       "      <td>2</td>\n",
        "      <td>1</td>\n",
        "      <td>1</td>\n",
-       "      <td>Behr, Mr. Karl Howell</td>\n",
-       "      <td>male</td>\n",
-       "      <td>26.0</td>\n",
+       "      <td>Cumings, Mrs. John Bradley (Florence Briggs Th...</td>\n",
+       "      <td>female</td>\n",
+       "      <td>38.0</td>\n",
+       "      <td>1</td>\n",
        "      <td>0</td>\n",
-       "      <td>0</td>\n",
-       "      <td>111369</td>\n",
-       "      <td>30.00</td>\n",
-       "      <td>C148</td>\n",
+       "      <td>PC 17599</td>\n",
+       "      <td>71.2833</td>\n",
+       "      <td>C85</td>\n",
        "      <td>C</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>890</th>\n",
-       "      <td>891</td>\n",
+       "      <th>2</th>\n",
+       "      <td>3</td>\n",
+       "      <td>1</td>\n",
+       "      <td>3</td>\n",
+       "      <td>Heikkinen, Miss. Laina</td>\n",
+       "      <td>female</td>\n",
+       "      <td>26.0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>STON/O2. 3101282</td>\n",
+       "      <td>7.9250</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>S</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>3</th>\n",
+       "      <td>4</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>Futrelle, Mrs. Jacques Heath (Lily May Peel)</td>\n",
+       "      <td>female</td>\n",
+       "      <td>35.0</td>\n",
+       "      <td>1</td>\n",
+       "      <td>0</td>\n",
+       "      <td>113803</td>\n",
+       "      <td>53.1000</td>\n",
+       "      <td>C123</td>\n",
+       "      <td>S</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>4</th>\n",
+       "      <td>5</td>\n",
        "      <td>0</td>\n",
        "      <td>3</td>\n",
-       "      <td>Dooley, Mr. Patrick</td>\n",
+       "      <td>Allen, Mr. William Henry</td>\n",
        "      <td>male</td>\n",
-       "      <td>32.0</td>\n",
+       "      <td>35.0</td>\n",
        "      <td>0</td>\n",
        "      <td>0</td>\n",
-       "      <td>370376</td>\n",
-       "      <td>7.75</td>\n",
+       "      <td>373450</td>\n",
+       "      <td>8.0500</td>\n",
        "      <td>NaN</td>\n",
-       "      <td>Q</td>\n",
+       "      <td>S</td>\n",
        "    </tr>\n",
        "  </tbody>\n",
        "</table>\n",
        "</div>"
       ],
       "text/plain": [
-       "     PassengerId  Survived  Pclass                                      Name  \\\n",
-       "886          887         0       2                     Montvila, Rev. Juozas   \n",
-       "887          888         1       1              Graham, Miss. Margaret Edith   \n",
-       "888          889         0       3  Johnston, Miss. Catherine Helen \"Carrie\"   \n",
-       "889          890         1       1                     Behr, Mr. Karl Howell   \n",
-       "890          891         0       3                       Dooley, Mr. Patrick   \n",
+       "   PassengerId  Survived  Pclass  \\\n",
+       "0            1         0       3   \n",
+       "1            2         1       1   \n",
+       "2            3         1       3   \n",
+       "3            4         1       1   \n",
+       "4            5         0       3   \n",
        "\n",
-       "        Sex   Age  SibSp  Parch      Ticket   Fare Cabin Embarked  \n",
-       "886    male  27.0      0      0      211536  13.00   NaN        S  \n",
-       "887  female  19.0      0      0      112053  30.00   B42        S  \n",
-       "888  female   NaN      1      2  W./C. 6607  23.45   NaN        S  \n",
-       "889    male  26.0      0      0      111369  30.00  C148        C  \n",
-       "890    male  32.0      0      0      370376   7.75   NaN        Q  "
+       "                                                Name     Sex   Age  SibSp  \\\n",
+       "0                            Braund, Mr. Owen Harris    male  22.0      1   \n",
+       "1  Cumings, Mrs. John Bradley (Florence Briggs Th...  female  38.0      1   \n",
+       "2                             Heikkinen, Miss. Laina  female  26.0      0   \n",
+       "3       Futrelle, Mrs. Jacques Heath (Lily May Peel)  female  35.0      1   \n",
+       "4                           Allen, Mr. William Henry    male  35.0      0   \n",
+       "\n",
+       "   Parch            Ticket     Fare Cabin Embarked  \n",
+       "0      0         A/5 21171   7.2500   NaN        S  \n",
+       "1      0          PC 17599  71.2833   C85        C  \n",
+       "2      0  STON/O2. 3101282   7.9250   NaN        S  \n",
+       "3      0            113803  53.1000  C123        S  \n",
+       "4      0            373450   8.0500   NaN        S  "
       ]
      },
-     "execution_count": 9,
+     "execution_count": 28,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -206,7 +213,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 10,
+   "execution_count": 29,
    "metadata": {},
    "outputs": [
     {
@@ -340,7 +347,7 @@
        "890    male  32.0      0      0      370376   7.75   NaN        Q  "
       ]
      },
-     "execution_count": 10,
+     "execution_count": 29,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -358,7 +365,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 12,
+   "execution_count": 30,
    "metadata": {},
    "outputs": [
     {
@@ -383,7 +390,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 13,
+   "execution_count": 31,
    "metadata": {},
    "outputs": [
     {
@@ -640,7 +647,7 @@
        "[891 rows x 11 columns]"
       ]
      },
-     "execution_count": 13,
+     "execution_count": 31,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -658,7 +665,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 14,
+   "execution_count": 32,
    "metadata": {},
    "outputs": [
     {
@@ -679,7 +686,7 @@
        "dtype: bool"
       ]
      },
-     "execution_count": 14,
+     "execution_count": 32,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -697,15 +704,14 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 15,
+   "execution_count": 33,
    "metadata": {},
    "outputs": [
     {
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "80.0\n",
-      "0.42\n"
+      "80.0\n"
      ]
     }
    ],
@@ -715,7 +721,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 16,
+   "execution_count": 34,
    "metadata": {},
    "outputs": [
     {
@@ -739,7 +745,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 17,
+   "execution_count": 35,
    "metadata": {},
    "outputs": [
     {
@@ -765,15 +771,14 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 24,
+   "execution_count": 36,
    "metadata": {},
    "outputs": [
     {
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "male:0.18890814558058924\n",
-      "female: 0.7420382165605095\n"
+      "male:0.18890814558058924\n"
      ]
     }
    ],
@@ -788,7 +793,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 25,
+   "execution_count": 37,
    "metadata": {},
    "outputs": [
     {
@@ -816,7 +821,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 19,
+   "execution_count": 38,
    "metadata": {},
    "outputs": [
     {
@@ -1055,7 +1060,7 @@
        "[891 rows x 12 columns]"
       ]
      },
-     "execution_count": 19,
+     "execution_count": 38,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1073,7 +1078,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 20,
+   "execution_count": 39,
    "metadata": {},
    "outputs": [
     {
@@ -1082,7 +1087,7 @@
        "<AxesSubplot: ylabel='Frequency'>"
       ]
      },
-     "execution_count": 20,
+     "execution_count": 39,
      "metadata": {},
      "output_type": "execute_result"
     },
@@ -1110,7 +1115,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 21,
+   "execution_count": 40,
    "metadata": {},
    "outputs": [
     {
@@ -1119,7 +1124,7 @@
        "<AxesSubplot: xlabel='Age', ylabel='Fare'>"
       ]
      },
-     "execution_count": 21,
+     "execution_count": 40,
      "metadata": {},
      "output_type": "execute_result"
     },