You have a list of strings representing numbers: ['1', '2', '3']. How do you create a NumPy array of integers from this list specifying dtype?

hard📝 Application Q8 of 15

NumPy - Array Data Types

You have a list of strings representing numbers: ['1', '2', '3']. How do you create a NumPy array of integers from this list specifying dtype?

Anp.array(['1', '2', '3'], dtype='int')

Bnp.array(['1', '2', '3'], dtype='str')

Cnp.array(['1', '2', '3'], dtype='float')

Dnp.array(['1', '2', '3'])

Step-by-Step Solution

Solution:

Step 1: Convert string numbers to integers
Specifying dtype='int' converts string elements to integers during array creation.
Step 2: Check other options
Using dtype='str' keeps strings; dtype='float' converts to floats; no dtype keeps strings.
Final Answer:
np.array(['1', '2', '3'], dtype='int') -> Option A
Quick Check:
Use dtype='int' to convert strings to integers = C [OK]

Quick Trick: dtype='int' converts numeric strings to integers [OK]

Common Mistakes:

Master "Array Data Types" in NumPy

9 interactive learning modes - each teaches the same concept differently

Want More Practice?

15+ quiz questions · All difficulty levels · Free

More NumPy Quizzes