EDA stands for "Exploratory data analysis". Developed by Tukey to contrast with Confirmatory Data Analysis or CDA (the formal testing of hypotheses). EDA is typically concerned with describing data numerically and graphically to make the data easier to understand and to yield new insights.

EDA stands for Exploratory data analysis. EDA was developed by Tukey to contrast with Confirmatory Data Analysis or CDA (i.e., the formal testing of hypotheses). EDA can include many of the same techniques as CDA, but they would be put in the service of different goals. EDA is typically concerned with describing data numerically and graphically to make the data easier to understand and to generate new hypotheses. EDA is related to, but not quite the same as, the process of cleaning data and checking assumptions.