[R] 'Split' chracter

[Sébastien]

Dear R-users,

The following code splits a very simple dataframe into a list, each 
element of the list being one line of the dataframe. You will see that 
the split function names each element of the list by using uses the 
content of a and b and merging them with a "." character. Is there a way 
to customize this character?

a<-1:10
b<-21:30
mydata<-data.frame(a,b)
mydata.split<-split(mydata,(mydata[,1:2]),drop=TRUE)
mydata.split

Thanks in advance for your help.

Sebastien