infer_freq broken in 0.13.1 · Issue #6407 · pandas-dev/pandas (original) (raw)

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In [3]: dates = pd.date_range('01-Jan-2015', '01-Jan-2016', freq='MS') ...: s = pd.TimeSeries(1, dates) ...: pd.infer_freq(s) ...: Traceback (most recent call last):

File "", line 3, in pd.infer_freq(s)

File "C:\dev\bin\Anaconda\lib\site-packages\pandas\tseries\frequencies.py", line 656, in infer_freq inferer = _FrequencyInferer(index, warn=warn)

File "C:\dev\bin\Anaconda\lib\site-packages\pandas\tseries\frequencies.py", line 680, in init self.is_monotonic = self.index.is_monotonic

File "C:\dev\bin\Anaconda\lib\site-packages\pandas\core\generic.py", line 1815, in getattr (type(self).name, name))

AttributeError: 'Series' object has no attribute 'is_monotonic'

In [4]: pd.version Out[4]: '0.13.1'