diff --git a/Jupyter Notebook/Distribution_of_Head_Circumference.ipynb b/Jupyter Notebook/Distribution_of_Head_Circumference.ipynb
new file mode 100644
index 0000000000000000000000000000000000000000..fb2fcab8db07c419dab187029509d6151f0b22d5
--- /dev/null
+++ b/Jupyter Notebook/Distribution_of_Head_Circumference.ipynb	
@@ -0,0 +1,547 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 32,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import pandas as pd"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 33,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import numpy as np"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 34,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "df =pd.read_csv('training_set_pixel_size_and_HC.csv')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 35,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>filename</th>\n",
+       "      <th>pixel size(mm)</th>\n",
+       "      <th>head circumference (mm)</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>0</th>\n",
+       "      <td>000_HC.png</td>\n",
+       "      <td>0.069136</td>\n",
+       "      <td>44.30</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>1</th>\n",
+       "      <td>001_HC.png</td>\n",
+       "      <td>0.089659</td>\n",
+       "      <td>56.81</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>2</th>\n",
+       "      <td>002_HC.png</td>\n",
+       "      <td>0.062033</td>\n",
+       "      <td>68.75</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>3</th>\n",
+       "      <td>003_HC.png</td>\n",
+       "      <td>0.091291</td>\n",
+       "      <td>69.00</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>4</th>\n",
+       "      <td>004_HC.png</td>\n",
+       "      <td>0.061240</td>\n",
+       "      <td>59.81</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>...</th>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>994</th>\n",
+       "      <td>801_HC.png</td>\n",
+       "      <td>0.296851</td>\n",
+       "      <td>329.26</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>995</th>\n",
+       "      <td>802_HC.png</td>\n",
+       "      <td>0.212267</td>\n",
+       "      <td>330.90</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>996</th>\n",
+       "      <td>803_HC.png</td>\n",
+       "      <td>0.202743</td>\n",
+       "      <td>331.70</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>997</th>\n",
+       "      <td>804_HC.png</td>\n",
+       "      <td>0.281090</td>\n",
+       "      <td>316.48</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>998</th>\n",
+       "      <td>805_HC.png</td>\n",
+       "      <td>0.257475</td>\n",
+       "      <td>330.70</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>999 rows × 3 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "       filename  pixel size(mm)  head circumference (mm)\n",
+       "0    000_HC.png        0.069136                    44.30\n",
+       "1    001_HC.png        0.089659                    56.81\n",
+       "2    002_HC.png        0.062033                    68.75\n",
+       "3    003_HC.png        0.091291                    69.00\n",
+       "4    004_HC.png        0.061240                    59.81\n",
+       "..          ...             ...                      ...\n",
+       "994  801_HC.png        0.296851                   329.26\n",
+       "995  802_HC.png        0.212267                   330.90\n",
+       "996  803_HC.png        0.202743                   331.70\n",
+       "997  804_HC.png        0.281090                   316.48\n",
+       "998  805_HC.png        0.257475                   330.70\n",
+       "\n",
+       "[999 rows x 3 columns]"
+      ]
+     },
+     "execution_count": 35,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "df"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 96,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import seaborn as sns"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 116,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# df[(df['category_']<300) & (df['category']>=280)] = 10"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "10 - 50 - 1\n",
+    "50 - 60 - 4\n",
+    "60 - 65 - 9                         0\n",
+    "65 - 70 - 28\n",
+    "70 - 75 - 30\n",
+    "----------------------------\n",
+    "75 - 80 - 47\n",
+    "80 - 85 - 26\n",
+    "85 - 90 - 9                         1\n",
+    "90 - 95 - 9\n",
+    "95 - 100 - 20\n",
+    "---------------------------\n",
+    "100 - 150 - 61                      2\n",
+    "---------------------------\n",
+    "150 - 200 - 538 \n",
+    "\n",
+    "150 - 160                           3\n",
+    "160 - 170                           4\n",
+    "170 - 180                           5\n",
+    "180 - 190                           6\n",
+    "190 - 200                           7\n",
+    "---------------------------\n",
+    "200 - 250                           8\n",
+    "---------------------------\n",
+    "250 - 280                           9\n",
+    "---------------------------\n",
+    "280 - 300                           10\n",
+    "---------------------------\n",
+    "300 - 350                           11\n",
+    "---------------------------\n",
+    "###350 is last"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 69,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "df['category'] = df['head circumference (mm)']"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 103,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "df['cat_int'] = df['category'].astype('int')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 108,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "df['categorical_con'] = df['cat_int'].astype('category')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 110,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "0       0\n",
+       "1       0\n",
+       "2       0\n",
+       "3       0\n",
+       "4       0\n",
+       "       ..\n",
+       "994    11\n",
+       "995    11\n",
+       "996    11\n",
+       "997    11\n",
+       "998    11\n",
+       "Name: categorical_con, Length: 999, dtype: category\n",
+       "Categories (28, int64): [0, 1, 2, 3, ..., 294, 296, 298, 299]"
+      ]
+     },
+     "execution_count": 110,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "df['categorical_con']"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 112,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "df.to_csv(r'updated.csv', index = False)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 113,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>filename</th>\n",
+       "      <th>pixel size(mm)</th>\n",
+       "      <th>head circumference (mm)</th>\n",
+       "      <th>category</th>\n",
+       "      <th>cat_int</th>\n",
+       "      <th>categorical_con</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>0</th>\n",
+       "      <td>0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>1</th>\n",
+       "      <td>0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>2</th>\n",
+       "      <td>0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>3</th>\n",
+       "      <td>0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>4</th>\n",
+       "      <td>0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>...</th>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>994</th>\n",
+       "      <td>11</td>\n",
+       "      <td>11.0</td>\n",
+       "      <td>11.0</td>\n",
+       "      <td>11.0</td>\n",
+       "      <td>11</td>\n",
+       "      <td>11</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>995</th>\n",
+       "      <td>11</td>\n",
+       "      <td>11.0</td>\n",
+       "      <td>11.0</td>\n",
+       "      <td>11.0</td>\n",
+       "      <td>11</td>\n",
+       "      <td>11</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>996</th>\n",
+       "      <td>11</td>\n",
+       "      <td>11.0</td>\n",
+       "      <td>11.0</td>\n",
+       "      <td>11.0</td>\n",
+       "      <td>11</td>\n",
+       "      <td>11</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>997</th>\n",
+       "      <td>11</td>\n",
+       "      <td>11.0</td>\n",
+       "      <td>11.0</td>\n",
+       "      <td>11.0</td>\n",
+       "      <td>11</td>\n",
+       "      <td>11</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>998</th>\n",
+       "      <td>11</td>\n",
+       "      <td>11.0</td>\n",
+       "      <td>11.0</td>\n",
+       "      <td>11.0</td>\n",
+       "      <td>11</td>\n",
+       "      <td>11</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>999 rows × 6 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "    filename  pixel size(mm)  head circumference (mm)  category  cat_int  \\\n",
+       "0          0             0.0                      0.0       0.0        0   \n",
+       "1          0             0.0                      0.0       0.0        0   \n",
+       "2          0             0.0                      0.0       0.0        0   \n",
+       "3          0             0.0                      0.0       0.0        0   \n",
+       "4          0             0.0                      0.0       0.0        0   \n",
+       "..       ...             ...                      ...       ...      ...   \n",
+       "994       11            11.0                     11.0      11.0       11   \n",
+       "995       11            11.0                     11.0      11.0       11   \n",
+       "996       11            11.0                     11.0      11.0       11   \n",
+       "997       11            11.0                     11.0      11.0       11   \n",
+       "998       11            11.0                     11.0      11.0       11   \n",
+       "\n",
+       "    categorical_con  \n",
+       "0                 0  \n",
+       "1                 0  \n",
+       "2                 0  \n",
+       "3                 0  \n",
+       "4                 0  \n",
+       "..              ...  \n",
+       "994              11  \n",
+       "995              11  \n",
+       "996              11  \n",
+       "997              11  \n",
+       "998              11  \n",
+       "\n",
+       "[999 rows x 6 columns]"
+      ]
+     },
+     "execution_count": 113,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "df"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.7.3"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}