[R] Binding dataframe with different length in rows and columns

[Jérôme Lemaître]

Dear all,

I'm trying to combine in R the two following datasets. 
I'm would be very grateful if someone could help me with this problem.

Dataset 1:
X	Y	Z
1	27	48
2	25	50
3	27	40
4	28	56

Where X is a unique number and Y and Z some variables 

Dataset 2:
X	I	J
1	10	12
1	12	12
1	23	30
1	40	46
2	7	8
2	8	9
2	9	8
3	2	0
4	98	87
4	78	89
Where X IS NOT this time a unique number. I and J are some variables.

Thank you by advance


Jérôme Lemaître
Étudiant au doctorat
Université Laval
Québec, QC