1장 TypeError: unsupported operand type(s) for /: 'float' and 'str'

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CODE

pop_Seoul['외국인비율'] = pop_Seoul['외국인'] / pop_Seoul['인구수'] 100 pop_Seoul['고령자비율'] = pop_Seoul['고령자'] / pop_Seoul['인구수'] 100 pop_Seoul.head()

===============에러=======================

TypeError Traceback (most recent call last) C:\ProgramData\Anaconda3\lib\site-packages\pandas\core\ops.py in na_op(x, y) 657 result = expressions.evaluate(op, str_rep, x, y, --> 658 raise_on_error=True, **eval_kwargs) 659 except TypeError:

C:\ProgramData\Anaconda3\lib\site-packages\pandas\core\computation\expressions.py in evaluate(op, op_str, a, b, raise_on_error, use_numexpr, eval_kwargs) 210 return _evaluate(op, op_str, a, b, raise_on_error=raise_on_error, --> 211 eval_kwargs) 212 return _evaluate_standard(op, op_str, a, b, raise_on_error=raise_on_error)

C:\ProgramData\Anaconda3\lib\site-packages\pandas\core\computation\expressions.py in _evaluate_numexpr(op, op_str, a, b, raise_on_error, truediv, reversed, **eval_kwargs) 121 if result is None: --> 122 result = _evaluate_standard(op, op_str, a, b, raise_on_error) 123

C:\ProgramData\Anaconda3\lib\site-packages\pandas\core\computation\expressions.py in _evaluate_standard(op, op_str, a, b, raise_on_error, **eval_kwargs) 63 with np.errstate(all='ignore'): ---> 64 return op(a, b) 65

TypeError: unsupported operand type(s) for /: 'float' and 'str'

During handling of the above exception, another exception occurred:

TypeError Traceback (most recent call last)

in () ----> 1 pop_Seoul['외국인비율'] = pop_Seoul['외국인'] / pop_Seoul['인구수'] * 100 2 pop_Seoul['고령자비율'] = pop_Seoul['고령자'] / pop_Seoul['인구수'] * 100 3 pop_Seoul.head() C:\ProgramData\Anaconda3\lib\site-packages\pandas\core\ops.py in wrapper(left, right, name, na_op) 719 lvalues = lvalues.values 720 --> 721 result = wrap_results(safe_na_op(lvalues, rvalues)) 722 return construct_result( 723 left, C:\ProgramData\Anaconda3\lib\site-packages\pandas\core\ops.py in safe_na_op(lvalues, rvalues) 680 try: 681 with np.errstate(all='ignore'): --> 682 return na_op(lvalues, rvalues) 683 except Exception: 684 if isinstance(rvalues, ABCSeries): C:\ProgramData\Anaconda3\lib\site-packages\pandas\core\ops.py in na_op(x, y) 662 result = np.empty(x.size, dtype=dtype) 663 mask = notnull(x) & notnull(y) --> 664 result[mask] = op(x[mask], _values_from_object(y[mask])) 665 elif isinstance(x, np.ndarray): 666 result = np.empty(len(x), dtype=x.dtype) TypeError: unsupported operand type(s) for /: 'float' and 'str'

PinkWink / DataScience

1장 TypeError: unsupported operand type(s) for /: 'float' and 'str' #12