Simplifier le groupby() avec count()

Author: plstonge

en/01-dataframe.ipynb

@@ -294,14 +294,17 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "id": "420ea5c6-15a8-4077-8adc-f0df1598d398",
+   "id": "c8a5d9c4-2182-4e14-9d9c-1c386831c151",
    "metadata": {
-    "lang": "en"
+    "lang": "en",
+    "tags": [
+     "exer"
+    ]
    },
    "outputs": [],
    "source": [
-    "# Get the number of records of the 'AB' species\n",
-    "surveys_df.groupby('species_id')['record_id'].count()['AB']"
+    "# Get the number of records per species ID\n",
+    "surveys_df.groupby('species_id').count()#['record_id']"
    ]
   },
   {

fr/01-dataframe.ipynb

@@ -295,14 +295,17 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "id": "ec43427e-dbe8-4ce4-96f9-32b543334bb4",
+   "id": "94bf4d11-9733-442e-ad97-9ea281fe94a0",
    "metadata": {
-    "lang": "fr"
+    "lang": "fr",
+    "tags": [
+     "exer"
+    ]
    },
    "outputs": [],
    "source": [
-    "# Obtenir le nombre d'enregistrements de l'espèce 'AB'\n",
-    "surveys_df.groupby('species_id')['record_id'].count()['AB']"
+    "# Obtenir le nombre d'enregistrements par code d'espèce\n",
+    "surveys_df.groupby('species_id').count()#['record_id']"
    ]
   },
   {

solution-en/01-dataframe.ipynb

@@ -299,12 +299,15 @@
    "execution_count": null,
    "id": "420ea5c6-15a8-4077-8adc-f0df1598d398",
    "metadata": {
-    "lang": "en"
+    "lang": "en",
+    "tags": [
+     "soln"
+    ]
    },
    "outputs": [],
    "source": [
-    "# Get the number of records of the 'AB' species\n",
-    "surveys_df.groupby('species_id')['record_id'].count()['AB']"
+    "# Get the number of records per species ID\n",
+    "surveys_df.groupby('species_id')['record_id'].count()"
    ]
   },
   {

solution-fr/01-dataframe.ipynb

@@ -300,12 +300,15 @@
    "execution_count": null,
    "id": "ec43427e-dbe8-4ce4-96f9-32b543334bb4",
    "metadata": {
-    "lang": "fr"
+    "lang": "fr",
+    "tags": [
+     "soln"
+    ]
    },
    "outputs": [],
    "source": [
-    "# Obtenir le nombre d'enregistrements de l'espèce 'AB'\n",
-    "surveys_df.groupby('species_id')['record_id'].count()['AB']"
+    "# Obtenir le nombre d'enregistrements par code d'espèce\n",
+    "surveys_df.groupby('species_id')['record_id'].count()"
    ]
   },
   {

src/01-dataframe.ipynb

@@ -730,25 +730,63 @@
    "execution_count": null,
    "id": "ec43427e-dbe8-4ce4-96f9-32b543334bb4",
    "metadata": {
-    "lang": "fr"
+    "lang": "fr",
+    "tags": [
+     "soln"
+    ]
+   },
+   "outputs": [],
+   "source": [
+    "# Obtenir le nombre d'enregistrements par code d'espèce\n",
+    "surveys_df.groupby('species_id')['record_id'].count()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "94bf4d11-9733-442e-ad97-9ea281fe94a0",
+   "metadata": {
+    "lang": "fr",
+    "tags": [
+     "exer"
+    ]
    },
    "outputs": [],
    "source": [
-    "# Obtenir le nombre d'enregistrements de l'espèce 'AB'\n",
-    "surveys_df.groupby('species_id')['record_id'].count()['AB']"
+    "# Obtenir le nombre d'enregistrements par code d'espèce\n",
+    "surveys_df.groupby('species_id').count()#['record_id']"
    ]
   },
   {
    "cell_type": "code",
    "execution_count": null,
    "id": "420ea5c6-15a8-4077-8adc-f0df1598d398",
    "metadata": {
-    "lang": "en"
+    "lang": "en",
+    "tags": [
+     "soln"
+    ]
+   },
+   "outputs": [],
+   "source": [
+    "# Get the number of records per species ID\n",
+    "surveys_df.groupby('species_id')['record_id'].count()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "c8a5d9c4-2182-4e14-9d9c-1c386831c151",
+   "metadata": {
+    "lang": "en",
+    "tags": [
+     "exer"
+    ]
    },
    "outputs": [],
    "source": [
-    "# Get the number of records of the 'AB' species\n",
-    "surveys_df.groupby('species_id')['record_id'].count()['AB']"
+    "# Get the number of records per species ID\n",
+    "surveys_df.groupby('species_id').count()#['record_id']"
    ]
   },
   {