What is the role of a dummy variable in linear regression analysis?

What is the role of a dummy variable in linear regression analysis?

题目类型: 技术面试题

这是一道技术面试题，常见于澳洲IT公司面试中。

难度: hard

标签: interviewbit, linear-regression, topic-specific, regression, machine-learning

参考答案摘要

A dummy variable in linear regression analysis is used as a substitute for an unobserved or non-measured categorical variable. It is used to represent the presence or absence of a specific category in...

本题提供 STAR 原则详细解答和技术解析，登录匠人学院学习中心即可查看完整答案。