Tag: Grouping Operations

Grouping is a common structured data calculation, with corresponding statements and functions available in both SQL and Python. However, these languages are far less powerful than the grouping operations offered by esProc SPL. Ordinary grouping often involves aggregation. For example, to calculate the number of employees for each department, the SQL code would be: Of course, SPL also supports such basic grouping and aggregation operations: It’s similar to SQL. In addition, SPL offers richer grouping operations. Below are two scenarios: 1. Grouped subset We are sometimes interested not only in grouped aggregate values, but also in the detailed data contained