i have got about 150k rows and 1 col, some rows have more than 1 word so  what i need to do is to get all the rows "concatenated" into 1 row and separated by a ; 
this is what i have got now:
Client
 1      John S
 2      Carl
 3      Katy Smith
 4      J P Morgan Stanley
what i need to see is:
Client
John S;Carl;Katy Smith;J P Morgan Stanley
i have tried:
paste(Client, sep = '', collapse = ';') but it does not work.
help please?
 
    