[R] Reshaping a dataframe

[eric]

Seems like this should be easy but I'm struggling a bit. How do I rearrange a
data frame to go from the first one to the second shown below ?


State	Date	lbs	
TX	200701	400	
TX	200702	650	
TX	200703	950	
TX	200704	1000	
FL	200701	200	
FL	200702	300	
FL	200703	500	
FL	200704	333	
NJ	200701	409	
NJ	200702	308	
NJ	200703	300	
NJ	200704	800	
			
			
			
Date	TX	FL	NJ
200701	400	200	409
200702	650	300	308
200703	950	500	300
200704	1000	333	800




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