Displaying 1 result from an estimated 1 matches for "tp20916243p20916727".
2008 Dec 09
3
Selecting rows that are the same in separate data frames
I want to compare two matrices or data frames and select or get an index for
those rows which are the same in both. I have tried the following :
a = matrix ( 1:10, ncol = 2 )
a
b = matrix ( c ( 2,3,4,7,8,9 ), ncol = 2 )
b
a[a==b]
a = as.data.frame ( matrix ( 1:10, ncol = 2 ) )
a
b = as.data.frame ( matrix ( c ( 2,3,4,7,8,9 ), ncol = 2 ) )
b
a[a==b]
Any ideas please.