DS Technical SkillsCoding

Improve Pandas performance by downcasting numerical datatypes and converting object columns to the 'category' type to save memory.

Was asked at

Practice this question with AI

Realistic mock interview with instant feedback. Fully customized.

Go Premium

More interviews, more skills, more success.

Practice More Questions

Interview question asked to Data Scientists interviewing at DoorDash, Headspace, Indeed.com and other companies. Original question asked: Improve Pandas performance by downcasting numerical datatypes and converting object columns to the 'category' type to save memory..