I habe a table and grouped it. How can I count the totally records of a group and how to assign a group_id to each record?
For example, in the following table:
| Student | city | gender | score |
|---|---|---|---|
| Conny | Berlin | F | 5 |
| Thomas | Berlin | M | 3 |
| Ying | Kaiserslautern | F | 4 |
| Kartoffel | Kaiserslautern | F | 5 |
I group the table by "city" + "gender", use the node "groupby", so I got three group:
- group1: Berlin, F
- group2: Berlin, M
- group3: Kaiserslautern, F
Question 1: But how can I get the number of total records in each group?
- group1: Berlin, F => 1 record
- group2: Berlin, M => 1 record
- group3: Kaiserslautern, F => 2 records
Question 2: How to assign each records the groud_id?
I want to get this table:
| Student | city | gender | score | group_id |
|---|---|---|---|---|
| Conny | Berlin | F | 5 | group1 |
| Thomas | Berlin | M | 3 | group2 |
| Ying | Kaiserslautern | F | 4 | group3 |
| Kartoffel | Kaiserslautern | F | 5 | group3 |
Is there a node can do this task?
Best Regards,
Ying