Drop column from multi-index DataFrame.ipynb

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     "text": [
      "Before dropping column: \n",
      "   Class A        Class B       \n",
      "     Name  Marks    Name  Marks\n",
      "0     Joe  85.10     Nat  77.80\n",
      "1   Harry  91.54     Sam  68.55\n",
      "\n",
      "After dropping column: \n",
      "   Class A Class B\n",
      "     Name    Name\n",
      "0     Joe     Nat\n",
      "1   Harry     Sam\n"
     ]
    }
   ],
   "source": [
    "import pandas as pd\n",
    "\n",
    "# create column header\n",
    "col = pd.MultiIndex.from_arrays([['Class A', 'Class A', 'Class B', 'Class B'],\n",
    "                                 ['Name', 'Marks', 'Name', 'Marks']])\n",
    "# create dataframe from 2darray\n",
    "student_df = pd.DataFrame([['Joe', '85.10', 'Nat', '77.80'], ['Harry', '91.54', 'Sam', '68.55']], columns=col)\n",
    "print(\"Before dropping column: \\n\", student_df)\n",
    "\n",
    "# drop column\n",
    "student_df = student_df.drop(columns=['Marks'], level=1)\n",
    "print(\"\\nAfter dropping column: \\n\", student_df)"
   ]
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