Ajoute la lecture des dates d'effet typées et les explore

30319aff · sandcha · 969af802 · 30319aff
Commit 30319aff authored 10 months ago by sandcha
--- a/data_exploration/territoires/dates_creations_communes.ipynb
+++ b/data_exploration/territoires/dates_creations_communes.ipynb
@@ -2,17 +2,17 @@
 "cells": [
  {
   "cell_type": "code",
-   "execution_count": 61,
+   "execution_count": 127,
   "metadata": {},
   "outputs": [],
   "source": [
    "from os import getcwd\n",
-    "from pandas import DataFrame, read_csv"
+    "from pandas import DataFrame, read_csv, to_datetime"
   ]
  },
  {
   "cell_type": "code",
-   "execution_count": 62,
+   "execution_count": 128,
   "metadata": {},
   "outputs": [],
   "source": [
@@ -43,7 +43,12 @@
    "| TNCC_AP |\t1 |\tType de nom en clair |\n",
    "| NCC_AP |\t200 |\tNom en clair (majuscules) |\n",
    "| NCCENR_AP |\t200 |\tNom en clair (typographie riche) |\n",
-    "| <span style='background-color:yellow'>LIBELLE_AP</span> |\t<span style='background-color:yellow'>200</span> |\t<span style='background-color:yellow'>Nom en clair (typographie riche) avec article</span> |\n"
+    "| <span style='background-color:yellow'>LIBELLE_AP</span> |\t<span style='background-color:yellow'>200</span> |\t<span style='background-color:yellow'>Nom en clair (typographie riche) avec article</span> |\n",
+    "\n",
+    "**Documentation complémentaire :**\n",
+    "\n",
+    "« Commune » est à prendre dans un sens extensif comprenant aussi les arrondissements municipaux, communes associées et communes déléguées.  \n",
+    "On peut avoir plusieurs lignes pour la transformation d’une même commune."
   ]
  },
  {
@@ -52,6 +57,7 @@
   "source": [
    "\n",
    "### Modalités pour le type d’événement\n",
+    "\n",
    "> Source (17/10/2024) : https://www.insee.fr/fr/information/7766169\n",
    "\n",
    "| Type de modification | Code |\n",
@@ -68,12 +74,14 @@
    "| Changement de code dû à un changement de département\t| 41 |\n",
    "| Changement de code dû à un transfert de chef-lieu\t| 50 |\n",
    "| Transformation de commune associée en commune déléguée | 70 |\n",
-    "| Rétablissement de commune déléguée\t| 71 |"
+    "| Rétablissement de commune déléguée\t| 71 |\n",
+    "\n",
+    "➡️ Colonne `MOD`"
   ]
  },
  {
   "cell_type": "code",
-   "execution_count": 63,
+   "execution_count": 129,
   "metadata": {},
   "outputs": [
    {
@@ -199,23 +207,277 @@
       "      <td>Cherves-Richemont</td>\n",
       "      <td>Cherves-Richemont</td>\n",
       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "   MOD    DATE_EFF TYPECOM_AV COM_AV  TNCC_AV             NCC_AV  \\\n",
+       "0   10  2024-01-01        COM  04045      0.0            CERESTE   \n",
+       "1   32  2024-01-01        COM  08053      0.0          BAZEILLES   \n",
+       "2   32  2024-01-01        COM  08294      3.0           MONCELLE   \n",
+       "3   32  2024-01-01        COM  08294      3.0           MONCELLE   \n",
+       "4   32  2024-01-01        COM  16097      0.0  CHERVES RICHEMONT   \n",
+       "\n",
+       "           NCCENR_AV         LIBELLE_AV TYPECOM_AP COM_AP  TNCC_AP  \\\n",
+       "0            Céreste            Céreste        COM  04045        0   \n",
+       "1          Bazeilles          Bazeilles        COM  08053        0   \n",
+       "2           Moncelle        La Moncelle        COM  08053        0   \n",
+       "3           Moncelle        La Moncelle       COMD  08294        3   \n",
+       "4  Cherves-Richemont  Cherves-Richemont       COMD  16097        0   \n",
+       "\n",
+       "               NCC_AP           NCCENR_AP          LIBELLE_AP  \n",
+       "0  CERESTE EN LUBERON  Céreste-en-Luberon  Céreste-en-Luberon  \n",
+       "1           BAZEILLES           Bazeilles           Bazeilles  \n",
+       "2           BAZEILLES           Bazeilles           Bazeilles  \n",
+       "3            MONCELLE            Moncelle         La Moncelle  \n",
+       "4   CHERVES RICHEMONT   Cherves-Richemont   Cherves-Richemont  "
+      ]
+     },
+     "execution_count": 129,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "# NCC_AV NCCENR_AV LIBELLE_AV\n",
+    "# NCC_AP NCCENR_AP LIBELLE_AP\n",
+    "\n",
+    "insee_mvtcommune_2024: DataFrame=read_csv(\n",
+    "    DATA_INSEE_MVTCOMMUNES_2024_PATH,\n",
+    "    dtype={\n",
+    "        \"NCC_AV\": str,\n",
+    "        \"NCC_AP\": str\n",
+    "        },\n",
+    "    encoding=\"utf-8\",\n",
+    "    sep=','\n",
+    "    )\n",
+    "\n",
+    "insee_mvtcommune_2024.head()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 130,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "DATE_FORMAT = \"%Y-%m-%d\"\n",
+    "\n",
+    "date_eff = insee_mvtcommune_2024[\"DATE_EFF\"]\n",
+    "date_eff_typed = to_datetime(date_eff, format=DATE_FORMAT)  # dtype: datetime64[ns]\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 131,
+   "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>MOD</th>\n",
+       "      <th>DATE_EFF</th>\n",
+       "      <th>TYPECOM_AV</th>\n",
+       "      <th>COM_AV</th>\n",
+       "      <th>TNCC_AV</th>\n",
+       "      <th>NCC_AV</th>\n",
+       "      <th>NCCENR_AV</th>\n",
+       "      <th>LIBELLE_AV</th>\n",
+       "      <th>TYPECOM_AP</th>\n",
+       "      <th>COM_AP</th>\n",
+       "      <th>TNCC_AP</th>\n",
+       "      <th>NCC_AP</th>\n",
+       "      <th>NCCENR_AP</th>\n",
+       "      <th>LIBELLE_AP</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>13279</th>\n",
+       "      <td>31</td>\n",
+       "      <td>1943-02-19</td>\n",
+       "      <td>COM</td>\n",
+       "      <td>60057</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>BEAUVAIS</td>\n",
+       "      <td>Beauvais</td>\n",
+       "      <td>Beauvais</td>\n",
+       "      <td>COM</td>\n",
+       "      <td>60057</td>\n",
+       "      <td>0</td>\n",
+       "      <td>BEAUVAIS</td>\n",
+       "      <td>Beauvais</td>\n",
+       "      <td>Beauvais</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>13280</th>\n",
+       "      <td>31</td>\n",
+       "      <td>1943-02-19</td>\n",
+       "      <td>COM</td>\n",
+       "      <td>60384</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>MARISSEL</td>\n",
+       "      <td>Marissel</td>\n",
+       "      <td>Marissel</td>\n",
+       "      <td>COM</td>\n",
+       "      <td>60057</td>\n",
+       "      <td>0</td>\n",
+       "      <td>BEAUVAIS</td>\n",
+       "      <td>Beauvais</td>\n",
+       "      <td>Beauvais</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>13281</th>\n",
+       "      <td>31</td>\n",
+       "      <td>1943-02-19</td>\n",
+       "      <td>COM</td>\n",
+       "      <td>60467</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>NOTRE DAME DU THIL</td>\n",
+       "      <td>Notre-Dame-du-Thil</td>\n",
+       "      <td>Notre-Dame-du-Thil</td>\n",
+       "      <td>COM</td>\n",
+       "      <td>60057</td>\n",
+       "      <td>0</td>\n",
+       "      <td>BEAUVAIS</td>\n",
+       "      <td>Beauvais</td>\n",
+       "      <td>Beauvais</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>13282</th>\n",
+       "      <td>31</td>\n",
+       "      <td>1943-02-19</td>\n",
+       "      <td>COM</td>\n",
+       "      <td>60580</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>SAINT JUST DES MARAIS</td>\n",
+       "      <td>Saint-Just-des-Marais</td>\n",
+       "      <td>Saint-Just-des-Marais</td>\n",
+       "      <td>COM</td>\n",
+       "      <td>60057</td>\n",
+       "      <td>0</td>\n",
+       "      <td>BEAUVAIS</td>\n",
+       "      <td>Beauvais</td>\n",
+       "      <td>Beauvais</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",
-       "      <td>...</td>\n",
-       "      <td>...</td>\n",
-       "      <td>...</td>\n",
-       "      <td>...</td>\n",
-       "      <td>...</td>\n",
-       "      <td>...</td>\n",
-       "      <td>...</td>\n",
-       "      <td>...</td>\n",
+       "      <th>13283</th>\n",
+       "      <td>31</td>\n",
+       "      <td>1943-02-19</td>\n",
+       "      <td>COM</td>\n",
+       "      <td>60696</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>VOISINLIEU</td>\n",
+       "      <td>Voisinlieu</td>\n",
+       "      <td>Voisinlieu</td>\n",
+       "      <td>COM</td>\n",
+       "      <td>60057</td>\n",
+       "      <td>0</td>\n",
+       "      <td>BEAUVAIS</td>\n",
+       "      <td>Beauvais</td>\n",
+       "      <td>Beauvais</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "       MOD    DATE_EFF TYPECOM_AV COM_AV  TNCC_AV                 NCC_AV  \\\n",
+       "13279   31  1943-02-19        COM  60057      0.0               BEAUVAIS   \n",
+       "13280   31  1943-02-19        COM  60384      0.0               MARISSEL   \n",
+       "13281   31  1943-02-19        COM  60467      0.0     NOTRE DAME DU THIL   \n",
+       "13282   31  1943-02-19        COM  60580      0.0  SAINT JUST DES MARAIS   \n",
+       "13283   31  1943-02-19        COM  60696      0.0             VOISINLIEU   \n",
+       "\n",
+       "                   NCCENR_AV             LIBELLE_AV TYPECOM_AP COM_AP  \\\n",
+       "13279               Beauvais               Beauvais        COM  60057   \n",
+       "13280               Marissel               Marissel        COM  60057   \n",
+       "13281     Notre-Dame-du-Thil     Notre-Dame-du-Thil        COM  60057   \n",
+       "13282  Saint-Just-des-Marais  Saint-Just-des-Marais        COM  60057   \n",
+       "13283             Voisinlieu             Voisinlieu        COM  60057   \n",
+       "\n",
+       "       TNCC_AP    NCC_AP NCCENR_AP LIBELLE_AP  \n",
+       "13279        0  BEAUVAIS  Beauvais   Beauvais  \n",
+       "13280        0  BEAUVAIS  Beauvais   Beauvais  \n",
+       "13281        0  BEAUVAIS  Beauvais   Beauvais  \n",
+       "13282        0  BEAUVAIS  Beauvais   Beauvais  \n",
+       "13283        0  BEAUVAIS  Beauvais   Beauvais  "
+      ]
+     },
+     "execution_count": 131,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "plus_ancien_evenement = date_eff_typed.min().strftime(DATE_FORMAT)\n",
+    "insee_mvtcommune_2024[date_eff == plus_ancien_evenement]\n",
+    "\n",
+    "# Conclusion : Beauvais est la commune ayant la DATE_EFF la plus ancienne (1943-02-19)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 132,
+   "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>MOD</th>\n",
+       "      <th>DATE_EFF</th>\n",
+       "      <th>TYPECOM_AV</th>\n",
+       "      <th>COM_AV</th>\n",
+       "      <th>TNCC_AV</th>\n",
+       "      <th>NCC_AV</th>\n",
+       "      <th>NCCENR_AV</th>\n",
+       "      <th>LIBELLE_AV</th>\n",
+       "      <th>TYPECOM_AP</th>\n",
+       "      <th>COM_AP</th>\n",
+       "      <th>TNCC_AP</th>\n",
+       "      <th>NCC_AP</th>\n",
+       "      <th>NCCENR_AP</th>\n",
+       "      <th>LIBELLE_AP</th>\n",
       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
       "    <tr>\n",
       "      <th>13279</th>\n",
       "      <td>31</td>\n",
@@ -303,46 +565,90 @@
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
-       "<p>13284 rows × 14 columns</p>\n",
       "</div>"
      ],
      "text/plain": [
-       "       MOD    DATE_EFF  ...           NCCENR_AP          LIBELLE_AP\n",
-       "0       10  2024-01-01  ...  Céreste-en-Luberon  Céreste-en-Luberon\n",
-       "1       32  2024-01-01  ...           Bazeilles           Bazeilles\n",
-       "2       32  2024-01-01  ...           Bazeilles           Bazeilles\n",
-       "3       32  2024-01-01  ...            Moncelle         La Moncelle\n",
-       "4       32  2024-01-01  ...   Cherves-Richemont   Cherves-Richemont\n",
-       "...    ...         ...  ...                 ...                 ...\n",
-       "13279   31  1943-02-19  ...            Beauvais            Beauvais\n",
-       "13280   31  1943-02-19  ...            Beauvais            Beauvais\n",
-       "13281   31  1943-02-19  ...            Beauvais            Beauvais\n",
-       "13282   31  1943-02-19  ...            Beauvais            Beauvais\n",
-       "13283   31  1943-02-19  ...            Beauvais            Beauvais\n",
+       "       MOD    DATE_EFF TYPECOM_AV COM_AV  TNCC_AV                 NCC_AV  \\\n",
+       "13279   31  1943-02-19        COM  60057      0.0               BEAUVAIS   \n",
+       "13280   31  1943-02-19        COM  60384      0.0               MARISSEL   \n",
+       "13281   31  1943-02-19        COM  60467      0.0     NOTRE DAME DU THIL   \n",
+       "13282   31  1943-02-19        COM  60580      0.0  SAINT JUST DES MARAIS   \n",
+       "13283   31  1943-02-19        COM  60696      0.0             VOISINLIEU   \n",
+       "\n",
+       "                   NCCENR_AV             LIBELLE_AV TYPECOM_AP COM_AP  \\\n",
+       "13279               Beauvais               Beauvais        COM  60057   \n",
+       "13280               Marissel               Marissel        COM  60057   \n",
+       "13281     Notre-Dame-du-Thil     Notre-Dame-du-Thil        COM  60057   \n",
+       "13282  Saint-Just-des-Marais  Saint-Just-des-Marais        COM  60057   \n",
+       "13283             Voisinlieu             Voisinlieu        COM  60057   \n",
       "\n",
-       "[13284 rows x 14 columns]"
+       "       TNCC_AP    NCC_AP NCCENR_AP LIBELLE_AP  \n",
+       "13279        0  BEAUVAIS  Beauvais   Beauvais  \n",
+       "13280        0  BEAUVAIS  Beauvais   Beauvais  \n",
+       "13281        0  BEAUVAIS  Beauvais   Beauvais  \n",
+       "13282        0  BEAUVAIS  Beauvais   Beauvais  \n",
+       "13283        0  BEAUVAIS  Beauvais   Beauvais  "
      ]
     },
-     "execution_count": 63,
+     "execution_count": 132,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
-    "# NCC_AV NCCENR_AV LIBELLE_AV\n",
-    "# NCC_AP NCCENR_AP LIBELLE_AP\n",
+    "CODE_INSEE_BEAUVAIS = \"60057\"  # inchangé pour le coeur de Beauvais, avant et après évènement(s)\n",
+    "filtre_bauvais = (insee_mvtcommune_2024[\"COM_AV\"] == CODE_INSEE_BEAUVAIS) | (insee_mvtcommune_2024[\"COM_AP\"] == CODE_INSEE_BEAUVAIS)\n",
+    "insee_mvtcommune_2024[filtre_bauvais]\n",
    "\n",
-    "insee_communes_2024: DataFrame=read_csv(\n",
-    "    DATA_INSEE_MVTCOMMUNES_2024_PATH,\n",
-    "    dtype={\n",
-    "        \"NCC_AV\": str,\n",
-    "        \"NCC_AP\": str\n",
-    "        },\n",
-    "    encoding=\"utf-8\",\n",
-    "    sep=','\n",
-    "    )\n",
+    "# Conclusion : la commune ayant la date la plus ancienne a pour évènements des fusions (pas de création de commune) "
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 133,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "'2012-01-01'"
+      ]
+     },
+     "execution_count": 133,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "est_commune_nouvelle = insee_mvtcommune_2024[\"MOD\"] == 32\n",
+    "communes_nouvelles = insee_mvtcommune_2024[est_commune_nouvelle]\n",
+    "communes_nouvelles[\"DATE_EFF\"].min()\n",
+    "\n",
+    "# Conclusion : l'évènement \"Création decommune nouvelle\" a pour plus ancienne date référencée le '2012-01-01'"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 134,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "'1945-09-17'"
+      ]
+     },
+     "execution_count": 134,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "est_creation_commune = insee_mvtcommune_2024[\"MOD\"] == 20\n",
+    "creation_commune = insee_mvtcommune_2024[est_creation_commune]\n",
+    "creation_commune[\"DATE_EFF\"].min()\n",
    "\n",
-    "insee_communes_2024"
+    "# Conclusion : l'évènement \"Création\" a pour plus ancienne date référencée le '1945-09-17'"
   ]
  }
 ],

 %% Cell type:code id: tags:

 ``` python
 from os import getcwd
-from pandas import DataFrame, read_csv
+from pandas import DataFrame, read_csv, to_datetime
 ```

 %% Cell type:code id: tags:

 ``` python
 # LISTE DES DONNEES
 DATA_DIRECTORY = getcwd() + "/../../data/territoires/"
 DATA_INSEE_MVTCOMMUNES_2024_PATH = DATA_DIRECTORY + "insee_mvtcommune_2024.csv"  # INSEE COG 2024
 ```

 %% Cell type:markdown id: tags:

 ### Dessin du fichier « Liste des évènements survenus aux communes, arrondissements municipaux, communes associées et communes déléguées depuis 1943 » et liste des variables
 > Source (17/10/2024) : https://www.insee.fr/fr/information/7766585

 | Nom de la variable | Longueur de la variable | Désignation et modalités de la variable |
 | --- | --- | --- |
 | MOD |	2 |	Type d'évènement de communes |
 | <span style='background-color:yellow'>DATE_EFF</span> | <span style='background-color:yellow'>10</span> | <span style='background-color:yellow'>Date d'effet (AAAA-MM-JJ)</span> |
 | TYPECOM_AV |	4 |	Type de la commune avant évènement |
 | COM_AV |	5 |	Code de la commune avant évènement |
 | TNCC_AV |	1 |	Type de nom en clair |
 | NCC_AV |	200 |	Nom en clair (majuscules) |
 | NCCENR_AV |	200 |	Nom en clair (typographie riche) |
 | LIBELLE_AV |	200 |	Nom en clair (typographie riche) avec article |
 | TYPECOM_AP |	4 |	Type de commune après l'évènement |
 | <span style='background-color:yellow'>COM_AP</span> | <span style='background-color:yellow'>5</span> | <span style='background-color:yellow'>Code de la commune après l'évènement</span> |
 | TNCC_AP |	1 |	Type de nom en clair |
 | NCC_AP |	200 |	Nom en clair (majuscules) |
 | NCCENR_AP |	200 |	Nom en clair (typographie riche) |
 | <span style='background-color:yellow'>LIBELLE_AP</span> |	<span style='background-color:yellow'>200</span> |	<span style='background-color:yellow'>Nom en clair (typographie riche) avec article</span> |

+**Documentation complémentaire :**
+
+« Commune » est à prendre dans un sens extensif comprenant aussi les arrondissements municipaux, communes associées et communes déléguées.
+On peut avoir plusieurs lignes pour la transformation d’une même commune.
+
 %% Cell type:markdown id: tags:


 ### Modalités pour le type d’événement
+
 > Source (17/10/2024) : https://www.insee.fr/fr/information/7766169

 | Type de modification | Code |
 | --- | --- |
 | Changement de nom	| 10 |
 | <span style='background-color:yellow'>Création</span>	| <span style='background-color:yellow'>20</span> |
 | Rétablissement | 21 |
 | Suppression | 30 |
 | Fusion simple	| 31 |
 | <span style='background-color:orange'>Création de commune nouvelle</span> | <span style='background-color:orange'>32</span> |
 | Fusion association | 33 |
 | Transformation de fusion association en fusion simple	| 34 |
 | Suppression de commune déléguée | 35 |
 | Changement de code dû à un changement de département	| 41 |
 | Changement de code dû à un transfert de chef-lieu	| 50 |
 | Transformation de commune associée en commune déléguée | 70 |
 | Rétablissement de commune déléguée	| 71 |

+➡️ Colonne `MOD`
+
 %% Cell type:code id: tags:

 ``` python
 # NCC_AV NCCENR_AV LIBELLE_AV
 # NCC_AP NCCENR_AP LIBELLE_AP

-insee_communes_2024: DataFrame=read_csv(
+insee_mvtcommune_2024: DataFrame=read_csv(
    DATA_INSEE_MVTCOMMUNES_2024_PATH,
    dtype={
        "NCC_AV": str,
        "NCC_AP": str
        },
    encoding="utf-8",
    sep=','
    )

-insee_communes_2024
+insee_mvtcommune_2024.head()
+```
+
+%% Output
+
+       MOD    DATE_EFF TYPECOM_AV COM_AV  TNCC_AV             NCC_AV  \
+    0   10  2024-01-01        COM  04045      0.0            CERESTE
+    1   32  2024-01-01        COM  08053      0.0          BAZEILLES
+    2   32  2024-01-01        COM  08294      3.0           MONCELLE
+    3   32  2024-01-01        COM  08294      3.0           MONCELLE
+    4   32  2024-01-01        COM  16097      0.0  CHERVES RICHEMONT
+    
+               NCCENR_AV         LIBELLE_AV TYPECOM_AP COM_AP  TNCC_AP  \
+    0            Céreste            Céreste        COM  04045        0
+    1          Bazeilles          Bazeilles        COM  08053        0
+    2           Moncelle        La Moncelle        COM  08053        0
+    3           Moncelle        La Moncelle       COMD  08294        3
+    4  Cherves-Richemont  Cherves-Richemont       COMD  16097        0
+    
+                   NCC_AP           NCCENR_AP          LIBELLE_AP
+    0  CERESTE EN LUBERON  Céreste-en-Luberon  Céreste-en-Luberon
+    1           BAZEILLES           Bazeilles           Bazeilles
+    2           BAZEILLES           Bazeilles           Bazeilles
+    3            MONCELLE            Moncelle         La Moncelle
+    4   CHERVES RICHEMONT   Cherves-Richemont   Cherves-Richemont
+
+%% Cell type:code id: tags:
+
+``` python
+DATE_FORMAT = "%Y-%m-%d"
+
+date_eff = insee_mvtcommune_2024["DATE_EFF"]
+date_eff_typed = to_datetime(date_eff, format=DATE_FORMAT)  # dtype: datetime64[ns]
+```
+
+%% Cell type:code id: tags:
+
+``` python
+plus_ancien_evenement = date_eff_typed.min().strftime(DATE_FORMAT)
+insee_mvtcommune_2024[date_eff == plus_ancien_evenement]
+
+# Conclusion : Beauvais est la commune ayant la DATE_EFF la plus ancienne (1943-02-19)
 ```

 %% Output

-           MOD    DATE_EFF  ...           NCCENR_AP          LIBELLE_AP
-    0       10  2024-01-01  ...  Céreste-en-Luberon  Céreste-en-Luberon
-    1       32  2024-01-01  ...           Bazeilles           Bazeilles
-    2       32  2024-01-01  ...           Bazeilles           Bazeilles
-    3       32  2024-01-01  ...            Moncelle         La Moncelle
-    4       32  2024-01-01  ...   Cherves-Richemont   Cherves-Richemont
-    ...    ...         ...  ...                 ...                 ...
-    13279   31  1943-02-19  ...            Beauvais            Beauvais
-    13280   31  1943-02-19  ...            Beauvais            Beauvais
-    13281   31  1943-02-19  ...            Beauvais            Beauvais
-    13282   31  1943-02-19  ...            Beauvais            Beauvais
-    13283   31  1943-02-19  ...            Beauvais            Beauvais
+           MOD    DATE_EFF TYPECOM_AV COM_AV  TNCC_AV                 NCC_AV  \
+    13279   31  1943-02-19        COM  60057      0.0               BEAUVAIS
+    13280   31  1943-02-19        COM  60384      0.0               MARISSEL
+    13281   31  1943-02-19        COM  60467      0.0     NOTRE DAME DU THIL
+    13282   31  1943-02-19        COM  60580      0.0  SAINT JUST DES MARAIS
+    13283   31  1943-02-19        COM  60696      0.0             VOISINLIEU
+    
+                       NCCENR_AV             LIBELLE_AV TYPECOM_AP COM_AP  \
+    13279               Beauvais               Beauvais        COM  60057
+    13280               Marissel               Marissel        COM  60057
+    13281     Notre-Dame-du-Thil     Notre-Dame-du-Thil        COM  60057
+    13282  Saint-Just-des-Marais  Saint-Just-des-Marais        COM  60057
+    13283             Voisinlieu             Voisinlieu        COM  60057
    
-    [13284 rows x 14 columns]
+           TNCC_AP    NCC_AP NCCENR_AP LIBELLE_AP
+    13279        0  BEAUVAIS  Beauvais   Beauvais
+    13280        0  BEAUVAIS  Beauvais   Beauvais
+    13281        0  BEAUVAIS  Beauvais   Beauvais
+    13282        0  BEAUVAIS  Beauvais   Beauvais
+    13283        0  BEAUVAIS  Beauvais   Beauvais
+
+%% Cell type:code id: tags:
+
+``` python
+CODE_INSEE_BEAUVAIS = "60057"  # inchangé pour le coeur de Beauvais, avant et après évènement(s)
+filtre_bauvais = (insee_mvtcommune_2024["COM_AV"] == CODE_INSEE_BEAUVAIS) | (insee_mvtcommune_2024["COM_AP"] == CODE_INSEE_BEAUVAIS)
+insee_mvtcommune_2024[filtre_bauvais]
+
+# Conclusion : la commune ayant la date la plus ancienne a pour évènements des fusions (pas de création de commune)
+```
+
+%% Output
+
+           MOD    DATE_EFF TYPECOM_AV COM_AV  TNCC_AV                 NCC_AV  \
+    13279   31  1943-02-19        COM  60057      0.0               BEAUVAIS
+    13280   31  1943-02-19        COM  60384      0.0               MARISSEL
+    13281   31  1943-02-19        COM  60467      0.0     NOTRE DAME DU THIL
+    13282   31  1943-02-19        COM  60580      0.0  SAINT JUST DES MARAIS
+    13283   31  1943-02-19        COM  60696      0.0             VOISINLIEU
+    
+                       NCCENR_AV             LIBELLE_AV TYPECOM_AP COM_AP  \
+    13279               Beauvais               Beauvais        COM  60057
+    13280               Marissel               Marissel        COM  60057
+    13281     Notre-Dame-du-Thil     Notre-Dame-du-Thil        COM  60057
+    13282  Saint-Just-des-Marais  Saint-Just-des-Marais        COM  60057
+    13283             Voisinlieu             Voisinlieu        COM  60057
+    
+           TNCC_AP    NCC_AP NCCENR_AP LIBELLE_AP
+    13279        0  BEAUVAIS  Beauvais   Beauvais
+    13280        0  BEAUVAIS  Beauvais   Beauvais
+    13281        0  BEAUVAIS  Beauvais   Beauvais
+    13282        0  BEAUVAIS  Beauvais   Beauvais
+    13283        0  BEAUVAIS  Beauvais   Beauvais
+
+%% Cell type:code id: tags:
+
+``` python
+est_commune_nouvelle = insee_mvtcommune_2024["MOD"] == 32
+communes_nouvelles = insee_mvtcommune_2024[est_commune_nouvelle]
+communes_nouvelles["DATE_EFF"].min()
+
+# Conclusion : l'évènement "Création decommune nouvelle" a pour plus ancienne date référencée le '2012-01-01'
+```
+
+%% Output
+
+    '2012-01-01'
+
+%% Cell type:code id: tags:
+
+``` python
+est_creation_commune = insee_mvtcommune_2024["MOD"] == 20
+creation_commune = insee_mvtcommune_2024[est_creation_commune]
+creation_commune["DATE_EFF"].min()
+
+# Conclusion : l'évènement "Création" a pour plus ancienne date référencée le '1945-09-17'
+```
+
+%% Output
+
+    '1945-09-17'