How to get the first column of a pandas DataFrame as a Series?
dataframe, pandas, python, series
Solution
>>> import pandas as pd
>>> df = pd.DataFrame({'x' : [1, 2, 3, 4], 'y' : [4, 5, 6, 7]})
>>> df
x y
0 1 4
1 2 5
2 3 6
3 4 7
>>> s = df.ix[:,0]
>>> type(s)
<class 'pandas.core.series.Series'>
>>>
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UPDATE
If you're reading this after June 2017, `ix` has been deprecated in pandas 0.20.2, so don't use it. Use `loc` or `iloc` instead. See comments and other answers to this question.
Problem
I tried: ``` x=pandas.DataFrame(...) s = x.take([0], axis=1) ``` And `s` gets a DataFrame, not a Series.