[R] help with reshape is needed again!

[xin wei]

hi, folks:
i need to transpose the following data:

gene    tissue    patient1     patient2     patient3.....
---------------------------------------------
gene1   breast   10            100             1
gene2   breast   20            200             4
gene3   breast   30            50              5
gene4   breast   40            400             9
................................

to the following format:

patientID  gene1  gene2   gene3    gene4............
-------------------------------------------
1              10       20       30        40
2              100     200      50        400
3               1       4          5         9

any suggestions how to use reshape or other function to achieve this?

thanks
     

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