7.15 Generate number in each group


Here below is the student data table:


Now we want to create a student ID for every student. The student ID should be: class number + student’s serial number in the class, and the serial number should be two-digit (calculate in cell C1):



esProc Desktop and Excel Processing
7.14 Calculate proportion using aggregation information of data of the same group
8.1 Intersection, union and difference in the case of simple members - two sets