Exploratory Data Analysis (EDA), Machine Learning projects, Economical/Financial analysis, scientific research, even single articles on different topics in newspapers involve examining correlation between variables. But what is correlation? How do we use it? Can we measure it? Can we visualize it? What is causation? How is it helping your business? You’ll find the answers to […] The post Correlation: What is it? How to calculate it? .corr() in pandas appeared first on Data36.