python - assigning column names to a pandas series

Question

I have a pandas series

object x
Ezh2   2
Hmgb   7
Irf1   1

I want to save this as a dataframe with column names Gene and Count respectively I tried

x_df = pd.DataFrame(x,columns = ['Gene','count'])

but it does not work.The final form I want is

Gene Count
Ezh2   2
Hmgb   7
Irf1   1

Can you suggest how to do this

Answer 1

You can create a dict and pass this as the data param to the dataframe constructor:

In [235]:

df = pd.DataFrame({'Gene':s.index, 'count':s.values})
df
Out[235]:
   Gene  count
0  Ezh2      2
1  Hmgb      7
2  Irf1      1

Alternatively you can create a df from the series, you need to call reset_index as the index will be used and then rename the columns:

In [237]:

df = pd.DataFrame(s).reset_index()
df.columns = ['Gene', 'count']
df
Out[237]:
   Gene  count
0  Ezh2      2
1  Hmgb      7
2  Irf1      1