Using appropriate dtypes in Pandas - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to convert the 'age' column to integer type.

Pandas

df['age'] = df['age'].astype([1])

Drag options to blanks, or click blank then click option'

A"bool"

B"float"

C"str"

D"int"

Attempts:

3 left

💡 Hint

Common Mistakes

Using "float" instead of "int" changes the type incorrectly.

Using "str" converts numbers to text.

To convert a column to integer type, use astype("int").

2fill in blank

medium

Complete the code to convert the 'price' column to float type.

Pandas

df['price'] = df['price'].astype([1])

Drag options to blanks, or click blank then click option'

A"float"

B"category"

C"int"

D"bool"

Attempts:

3 left

💡 Hint

Common Mistakes

Using "int" loses decimal information.

Using "category" is for categorical data, not numbers.

Use astype("float") to convert a column to floating point numbers.

3fill in blank

hard

Fix the error in the code to convert the 'status' column to category type.

Pandas

df['status'] = df['status'].astype([1])

Drag options to blanks, or click blank then click option'

A"cat"

Bcategory

C"category"

Dcat

Attempts:

3 left

💡 Hint

Common Mistakes

Using category without quotes causes a NameError.

Using "cat" is not a valid dtype name.

The dtype name must be a string: "category".

4fill in blank

hard

Fill both blanks to create a dictionary that converts 'score' to float and 'passed' to bool.

Pandas

dtype_dict = {'score': [1], 'passed': [2]

Drag options to blanks, or click blank then click option'

A"float"

B"int"

C"bool"

D"str"

Attempts:

3 left

💡 Hint

Common Mistakes

Using "int" for score loses decimals.

Using "str" for passed is incorrect.

Use "float" for 'score' and "bool" for 'passed' in the dtype dictionary.

5fill in blank

hard

Fill in the blank to convert columns using a dtype dictionary: 'height' to float, 'weight' to int, and 'active' to bool.

Pandas

df = df.astype([1])

Drag options to blanks, or click blank then click option'

A{'height': 'float', 'weight': 'int', 'active': 'bool'}

B{'height': 'int', 'weight': 'float', 'active': 'bool'}

C{'height': 'float', 'weight': 'int', 'active': 'str'}

D{'height': 'bool', 'weight': 'int', 'active': 'float'}

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping float and int for height and weight.

Using 'str' for active instead of 'bool'.

The dictionary must map 'height' to 'float', 'weight' to 'int', and 'active' to 'bool' for correct dtype conversion.