A = data.frame( a = c(1:10), b = c(11:20) )
B = data.frame( a = c(101:110), b = c(111:120) )
C = data.frame( a = c(5:8), b = c(55:58) )
L = list(list(B,C),list(A),list(C,A),list(A,B,C),list(C))
A = data.frame( a = c(1:10), b = c(11:20) )
B =A = data.frame( a = c(1:10), b = c(11:20) )
B = data.frame( a = c(101:110), b = c(111:120) )
C = data.frame( a = c(5:8), b = c(55:58) )
L = list(list(B,C),list(A),list(C,A),list(A,B,C),list(C))
A = data.frame( a = c(1:10), b = c(11:20) )
B =