Obs    drug        diet    delivery    fintake

                1    saline       C1       IV         0.117 
                2    saline       C1       IV         0.304 
                3    saline       A        IV         0.176 
                4    saline       A        IV         0.094 
                5    saline       C2       IV         0.228 
                6    saline       C2       IV         0.084 
                7    saline       C1       ICV        0.148 
                8    saline       C1       ICV        0.073 
                9    saline       A        ICV        0.222 
               10    saline       A        ICV        0.276 
               11    saline       C2       ICV        0.162 
               12    saline       C2       ICV        0.110 
               13    orexin-B     C1       IV         0.304 
               14    orexin-B     C1       IV         0.014 
               15    orexin-B     A        IV         0.136 
               16    orexin-B     A        IV         0.161 
               17    orexin-B     C2       IV         0.178 
               18    orexin-B     C2       IV         0.095 
               19    orexin-B     C1       ICV        0.467 
               20    orexin-B     C1       ICV        0.253 
               21    orexin-B     A        ICV        0.373 
               22    orexin-B     A        ICV        0.373 
               23    orexin-B     C2       ICV        0.372 
               24    orexin-B     C2       ICV        0.204