Unique Turnstile Analysis

MTA_Data_Blog.ipynb

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      "text/plain": [
       "UNIT  SCP     \n",
       "R001  00-00-00    1\n",
       "R273  00-00-01    1\n",
       "      00-00-00    1\n",
       "R272  01-06-02    1\n",
       "      01-06-01    1\n",
       "                 ..\n",
       "R112  01-06-01    1\n",
       "      01-06-00    1\n",
       "      01-05-01    1\n",
       "R113  00-00-04    1\n",
       "R572  01-03-04    1\n",
       "Name: STATION, Length: 4945, dtype: int64"
      ]
     },
     "execution_count": 4,
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   "source": [
    "df.groupby(['UNIT','SCP'])['STATION'].nunique().sort_values()  \n",
    "#checking combination of 'UNIT' and 'SCP' is unique to each station,implying each combination refers to a unique turnstile"
   ]
  }
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