"Join multiple CSV"

kavuchkavuch Member Posts: 6 Contributor I
edited June 13 in Help
Suppose 3 CSV-files:

Events
id,event,day_id,city_id
1,work,1,2
2,work,2,3
3,theatre,2,1
4,work,3,2
5,work,4,1
6,work,5,3
7,trip,6,3
8,sport,7,1
9,relax,7,2
Weekdays
id,day
1,monday
2,tuesday
3,wednesday
4,thursday
5,friday
6,saturday,
7,sunday
Cities
id,city
1,paris
2,london
3,rome
Thanks to http://rapid-i.com/rapidforum/index.php/topic,9301.0.html I now know, how to join 2 CSVs in order to get the labels of another CSV instead of their IDs.
But how to join them if I have more than 2 CSV. The Join-operator can only by used to join 2 files.

This is the result I want:
1, work, monday, london
2, work, tuesday, rome
3, theatre, tuesday, paris
Tagged:

Answers

  • sgenzersgenzer 12Administrator, Moderator, Employee, RapidMiner Certified Analyst, Community Manager, Member, University Professor, PM Moderator Posts: 2,446  Community Manager
    hi again...just join the first two, and then join the third to the output of the first join.  :)

    Scott
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