添加链接
link之家
链接快照平台
  • 输入网页链接,自动生成快照
  • 标签化管理网页链接
Collectives™ on Stack Overflow

Find centralized, trusted content and collaborate around the technologies you use most.

Learn more about Collectives

Teams

Q&A for work

Connect and share knowledge within a single location that is structured and easy to search.

Learn more about Teams

first argument must be an iterable of pandas objects, you passed an object of type "Series"

Ask Question {'BoP transfers': {1998: 12.346282212735618, 1999: 19.06438060024298, 2000: 18.24888031473687, 2001: 24.860019912667006, 2002: 32.38242225822908}, 'Current balance': {1998: -6.7953, 1999: -2.9895, 2000: -3.9694, 2001: 1.1716, 2002: 5.7433}, 'Domestic demand': {1998: 106.8610389799729, 1999: 104.70302507466538, 2000: 104.59254229534136, 2001: 103.83532232336977, 2002: 102.81709401489702}, 'Effective exchange rate': {1998: 88.134, 1999: 95.6425, 2000: 99.927725, 2001: 101.92745, 2002: 107.85565}, 'RoR (foreign liabilities)': {1998: 0.0433, 1999: 0.0437, 2000: 0.0542, 2001: 0.0539, 2002: 0.0474}}

which can be transformed back to its original form using

df = pd.DataFrame.from_dict(s)

I want to slice this dataframe in the following manner:

df_1 = df.iloc[:,0:2]
df_2 = pd.concat(df.iloc[:,0], df.iloc[:,3:])

when I get the titled error. I know there are some questions regarding this already, but I am unable to put the pieces together. Specifically, in my case, the dataframe is not this small (it has 100 columns). I want something along the lines of

df_1 = df.iloc[:,0:10]
df_2 = pd.concat(df.iloc[:,0], df.iloc[:,11:20])
df_3 = pd.concat(df.iloc[:,0], df.iloc[:,21:30])

and so on. How can this be accomplished? Thank you.

You need to use a list of the DataFrames to merge and to concat on axis=1:

df_2 = pd.concat([df.iloc[:,0], df.iloc[:,3:]], axis=1)

Or, better, use slicing:

df_2 = df.iloc[:, [0,3,4]]
df_2 = df.iloc[:, np.r_[0,3:df.shape[1]]]

Output:

      BoP transfers  Effective exchange rate  RoR (foreign liabilities)
1998      12.346282                88.134000                     0.0433
1999      19.064381                95.642500                     0.0437
2000      18.248880                99.927725                     0.0542
2001      24.860020               101.927450                     0.0539
2002      32.382422               107.855650                     0.0474
        

Thanks for contributing an answer to Stack Overflow!

  • Please be sure to answer the question. Provide details and share your research!

But avoid

  • Asking for help, clarification, or responding to other answers.
  • Making statements based on opinion; back them up with references or personal experience.

To learn more, see our tips on writing great answers.