What is exploratory data analysis john tukey?

John Wilder Tukey was a prominent American mathematician and statistician who is widely considered as the father of exploratory data analysis (EDA). He made significant contributions to the field of statistics, including the development of the fast Fourier transform algorithm and the box-and-whisker plot.

Tukey believed that data analysis should not be limited to formal statistical tests or assumptions of normality, but rather should be driven by the data itself. He emphasized the importance of visualizing data through graphs and other graphical displays. He also introduced the concept of what he called "canned analysis," which refers to prepackaged statistical procedures that impose assumptions on the data.

Tukey's approach to data analysis became known as EDA, which is now considered a foundational practice in modern data science. EDA involves exploring and summarizing data through graphical and numerical methods, often to uncover patterns, trends, and outliers. It is an iterative process that often involves generating multiple hypotheses and testing them against the data.

Tukey's contributions to the field of statistics have had a lasting impact. He received numerous awards and honors for his work, including the National Medal of Science. Through his pioneering work in EDA, Tukey transformed the way people think about data analysis and set the groundwork for modern data science.