Four Basic Steps in Data Preparation - KDnuggets

What are the steps in data preparation? Are there specific steps we need to take for specific problems? The answer is not that straightforward: Practice and knowledge will design the best recipe for each case. First, there are two types of data preparation: KPI calculation to extract the information from the raw data and data preparation for the data science algorithm. While the first one is domain and business dependent, the second one is more standardized.