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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