DataFrames in pandas Set1

Which of the following can be used to create a DataFrame?

• List of List

• Dictionary of List

• List of Series

• All of these

Pandas deals with following data structures

• Series

• Series and Data Frames

• Series, DataFrames and Panel

• None of Above

To get the number of elements in a DataFrame, ___________________ attribute is used.

• index

• size

• itemsize

• ndim

Give the output of the following code:

>>>import pandas as pd

>>>dict1 = {'AR' : 100, 'VR' : 200, 'AI' : 300}

>>>ser = pd.Series(dict1)

>>>print(ser[1])

• AR

• 100

• VR

• 200

To get the number of dimensions of a Series object, ____________ attribute is displayed

• itemsize

• size

• index

• ndim

Best way to import the pandas module in your program ?

• 1.import pandas as p

• 2.import pandas as pd

• 3.import pandas as d

• 4.All of the above

write the output:

import pandas as pd

s=pd.Series([1,2,3,4],index=['a','b','c','d'])

print(s.iloc[2:4])

• b 2

  c 3

  d 4

  dtype: int64

• b 3

  c 4

  dtype: int64

• c 3

  d 4

  dtype: int64

• none of the above

DataFrame in Pandas is

• 1 Dimensional Array

• 2 Dimensional array

• 3 Dimensional array

• none of above

To get Transpose of a Matrix ________ attribute is used.

• df.transpose

• df.trans

• df.T

• all

write the output:

import pandas as pd1

s = pd1.Series([1,2,3])

t = pd1.Series([1,2,4])

u=s-t

print (u)

• 0 1

  1 0

  2 1

  dtype: int64

• 0 0

  1 1

  2 1

• 0 1

  1 0

  2 1

• 0 0

  1 0

  2 -1