Pandas DataFrame Operations

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What data structure in pandas is a 1-dimensional array?

Dataframe

Dictionary

Series (correct)

Array

What is the minimum number of arguments required to pass in a pandas Series?

3

2

0

1 (correct)

Which of the following is not a feature of a pandas Series?

Homogeneous data

Immutable size

Mutable data

Multiple columns (correct)

What is the full form of NaN in pandas?

Not a Number Signup and view all the answers

What package is required to create a pandas Series?

Pandas Signup and view all the answers

What data structure can be used to analyze data in pandas?

Both Signup and view all the answers

What is the output of the following code: import pandas as pd; s = pd.Series(5, index=[0, 1, 2, 3]); print(s)?

0 5 Signup and view all the answers

What is the minimum number of arguments required to pass in a pandas Series?

1 Signup and view all the answers

What can be used to create a pandas Series?

All of them Signup and view all the answers

What is the output of the following code: `import pandas as pd; s = pd.Series(5, index=[0, 1, 2, 3]); print(s)`?

0 5 1 5 2 5 3 5 dtype: int64 Signup and view all the answers

What does NaN stand for in pandas?

Not a Number Signup and view all the answers

What is the output of the following code: `import pandas as pd; s = pd.Series([1,2,3]); t = pd.Series([1,2,4]); u = s-t; print(u)`?

0 0 1 0 2 -1 dtype: int64 Signup and view all the answers

What is a DataFrame in Pandas?

A two-dimensional array with heterogeneous data Signup and view all the answers

What is the purpose of the drop() function in a DataFrame?

To delete a column or row Signup and view all the answers

Which function can be used to read a dataset from a large text file?

read_csv Signup and view all the answers

What can be used to create a DataFrame in Pandas?

All of the above Signup and view all the answers

What is the full form of a CSV file?

Comma Separated Value Signup and view all the answers

What is the correct Pandas syntax to read in a CSV file and assign it to a DataFrame?

df = pd.read_csv('file.csv') Signup and view all the answers

What does the line of code 'df.dropna()' do?

Drops NaN values Signup and view all the answers

What is the default number of rows returned by the head() function in a Series?

5 Signup and view all the answers

What is the difference between a DataFrame and a Series?

A DataFrame is two-dimensional, while a Series is one-dimensional Signup and view all the answers

What does the iteritems() function do?

Returns a tuple with the column name and the content as a Series Signup and view all the answers

What is the dimension of a Series in Pandas?

1 Dimensional Array Signup and view all the answers

What is the minimum number of arguments required to pass in a Pandas Series?

1 Signup and view all the answers

Which of the following statements will display the last few rows of the dataframe?

Print(df.tail()) Signup and view all the answers

Which of the following commands will delete the 'rank2' row from the dataframe?

df.drop('rank2') Signup and view all the answers

What is the correct way to add a new column 'Marks' to the dataframe with the values 12, 22, 21, 24?

df['marks'] = [12, 22, 21, 24] Signup and view all the answers

What is the attribute used to specify column labels in a DataFrame?

columns Signup and view all the answers

Which of the following functions can be used to extract a row or column from a DataFrame?

All of the above Signup and view all the answers

What is the number of arguments required by the `insert` function in a DataFrame?

3 Signup and view all the answers

Pandas DataFrame Operations

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Questions and Answers

What data structure in pandas is a 1-dimensional array?

What is the minimum number of arguments required to pass in a pandas Series?