我试图使用一个包含不同部分选项数据的熊猫数据框来计算隐含波动率。对于我使用的隐含波动率mibian。下面的代码:大熊猫DataFrame.apply()和mibian
optionsData.to_dict():
{'callclose': {0: Decimal('4'),
1: Decimal('2.62'),
2: Decimal('2.64'),
3: Decimal('1.7'),
4: Decimal('1.35')},
'daystoexpiration': {0: 43L, 1: 43L, 2: 43L, 3: 43L, 4: 43L},
'expiration': {0: datetime.date(2013, 2, 16),
1: datetime.date(2013, 2, 16),
2: datetime.date(2013, 2, 16),
3: datetime.date(2013, 2, 16),
4: datetime.date(2013, 2, 16)},
'impvol': {0: nan, 1: nan, 2: nan, 3: nan, 4: nan},
'putclose': {0: Decimal('0.54'),
1: Decimal('0.65'),
2: Decimal('0.76'),
3: Decimal('1.08'),
4: Decimal('1.56')},
'strike': {0: Decimal('39'),
1: Decimal('40'),
2: Decimal('41'),
3: Decimal('42'),
4: Decimal('43')},
'symbol': {0: 'A', 1: 'A', 2: 'A', 3: 'A', 4: 'A'},
'underlyingclose': {0: Decimal('42.86'),
1: Decimal('42.86'),
2: Decimal('42.86'),
3: Decimal('42.86'),
4: Decimal('42.86')}}
optionsData = optionsData.T
def calcvol(info):
print info.name
print 'Starting procedure.'
tempmb = mb.BS([info['underlyingclose'],
info['strike'],
.25,
info['daystoexpiration']],
callPrice=float(info['callclose']),
putPrice=info['putclose'])
print 'mb created'
impvol = tempmb.impliedVolatility
print 'implied vol calculated'
info['impvol'] = impvol
print 'impvol set'
del impvol, tempmb
print 'vars deleted'
return info
a = optionsData.apply(calcvol)
当我经历了所有的运行,它设置在optionsData的第一个元素的impvol,但似乎后来给我这个错误:
---------------------------------------------------------------------------
ZeroDivisionError Traceback (most recent call last)
<ipython-input-9-116f3c010b9c> in <module>()
----> 1 a = optionsData.apply(calcvol)
C:\Python27\lib\site-packages\pandas-0.10.0-py2.7-win32.egg\pandas\core\frame.pyc in apply(self, func, axis, broadcast, raw, args, **kwds)
4079 return self._apply_raw(f, axis)
4080 else:
-> 4081 return self._apply_standard(f, axis)
4082 else:
4083 return self._apply_broadcast(f, axis)
C:\Python27\lib\site-packages\pandas-0.10.0-py2.7-win32.egg\pandas\core\frame.pyc in _apply_standard(self, func, axis, ignore_failures)
4154 # no k defined yet
4155 pass
-> 4156 raise e
4157
4158 if len(results) > 0 and _is_sequence(results[0]):
ZeroDivisionError: ('float division by zero', u'occurred at index 1')
0
Starting procedure.
mb created
implied vol calculated
impvol set
vars deleted
0
Starting procedure.
mb created
implied vol calculated
impvol set
vars deleted
1
Starting procedure.
我有缺少一些简单的东西。我已经尝试在float()中包含每个值,因为我将它们传递给了mibian,并且仍然遇到同样的问题。我非常感谢任何指导。另外,如果您知道使用数据框来计算隐含波动率的更有效方法,那么我就是所有人。
你测试了'calcvol'函数吗?在申请之前先做好这个练习是很好的做法。 (我不认为这是一个简单的遗忘轴参数:'optionsData.apply(calcvol,axis = 1)'? –