[R] match

[threshold]

Hi, I would like to check which rows of 'types.prev' matrix pop up in
'types', following R in-built procedure. I tried 'match' function but it
works in case of the one dimensional vectors.
Will appreciate any suggestions. 
best, robert 

> types
         edate    K  
 [1,] 20060819 12.5 
 [2,] 20060819 17.5 
 [3,] 20060819 22.5 
 [4,] 20070217 12.5 
 [5,] 20060617 10.0 
 [6,] 20060617 15.0 
 [7,] 20060520 12.5 
 [8,] 20060520 15.0 
 [9,] 20060520 17.5 
[10,] 20061118 10.0 
[11,] 20061118 12.5 
[12,] 20061118 15.0 
[13,] 20061118 17.5 

> types.prev
         edate    K  
 [1,] 20060819 10.0 
 [2,] 20060819 12.5 
 [3,] 20060819 17.5 
 [4,] 20070217 10.0 
 [5,] 20070217 12.5 
 [6,] 20070217 15.0 
 [7,] 20060617 10.0 
 [8,] 20060617 12.5 
 [9,] 20060617 15.0 
[10,] 20060617 20.0
[11,] 20060520 10.0
[12,] 20060520 12.5
[13,] 20060520 17.5
[14,] 20061118 12.5
[15,] 20061118 15.0
[16,] 20061118 17.5


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