Python for Data Science

11 Gaining Insights from Data

Companies generate vast amounts of data every day in the form of raw facts, figures, and events, but what does all that data really tell you? To extract knowledge and gain insight from the data, you need to transform, analyze, and visualize it. In other words, you need to turn the raw data into meaningful information that you can use to make decisions, answer questions, and solve problems.

Consider the case of a supermarket that collects large volumes of customer transaction data. Analysts at the supermarket may be interested in studying this data to gain insight into customers’ buying preferences. In particular, ...