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#!/usr/bin/env python |
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# coding: utf-8 |
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# In[2]: |
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#importer la librairie Pandas |
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import pandas as pd |
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# In[3]: |
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#ouvrir un fichier CSV |
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df = pd.read_csv (r'/Users/marinegalanth/Desktop/inondation_bdd/_n_commune_s.csv') |
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print(df) |
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# In[5]: |
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#créer un dataframe |
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df=pd.DataFrame(df) |
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# In[6]: |
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#afficher le dataframe |
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df |
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# In[7]: |
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df2=df[["code_insee,C,80","nom_com,C,80"]] |
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# In[8]: |
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#afficher la nouvelle ataframe df2 |
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df2 |
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# In[9]: |
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#dupliquer la colonne : code_insee,C,80 > créer une nouvelle colonne nommée dep_code |
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#avec les valeurs de code_insee,C,80 |
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df2=df.assign(dep_code=df['code_insee,C,80']) |
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# In[10]: |
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#afficher le nouveau DataFrame |
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df2 |
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# In[11]: |
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#selectionner uniquement les colonnes choisies dans une nouveau df3 |
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df3=df2[["code_insee,C,80","nom_com,C,80","dep_code"]] |
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# In[12]: |
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#afficher df3 |
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df3 |
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# In[ ]: |