每日一练 | Data Scientist & Business Analyst 面试题 130
从6月15日起,数据应用学院将与你一起温习数据科学(DS)和商业分析(BA)领域常见的面试问题。希望积极寻求相关领域工作的你每天关注我们的问题并且与我们一起思考,我们将会在第二天给出答案。
Day 30
DS Interview Questions
What are the advantages and disadvantages of k-nearest neighbors?
BA Interview Questions
What will be the output of runif (7) ?
欲知答案如何?请见下期分解!
Day 29 答案揭晓
DS Interview Questions
What is the Box-Cox transformation used for?
The Box-Cox transformation is a generalized "power transformation" that transforms data to make the distribution more normal.
It's used to stabilize the variance (eliminate heteroskedasticity) and normalize the distribution.
BA Interview Questions
How will you list all the data sets available in all R packages?
data(package = .packages(all.available = TRUE))
往期文章内容
每日一练 | Data Scientist & Business Analyst 面试题 129
每日一练 | Data Scientist & Business Analyst 面试题 128
每日一练 | Data Scientist & Business Analyst 面试题 127
每日一练 | Data Scientist & Business Analyst 面试题 126
每日一练 | Data Scientist & Business Analyst 面试题 125
长期招募
TECHNICAL WRITER/翻译志愿者
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深度讨论数据应用
调研行业发展
要求:
对数据应用极为感兴趣
具备数据分析基础
具有一定BUSINESS INSIGHT
写作能力强
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