Hello all R users,

I have a problems transforming (or maybe better regrouping) a data.frame.
 I have a big data.frame, which I would like to sum up according to a
specific column.

This is an example of my matrix:
ID    gen
0042787    gen2
0016070    gen2
0016070    gen3
0007409    Gen1
0007409    gen3
0006511    gen2
0006417    gen3
0016070    gen4
0006511    gen4

I want to rearrange the matrix according to column GO, so that it will look
likes that:

GO:0042787     gen2
GO:0016070    gen2  :  gen3  :  gen4
GO:0007409    gen1  :  gen3
GO:0006511    gen2  :  gen4
GO:0006417    gen3

I've tried it with the package doBy (lapplyBy and paste) but it just doesn't
work out.

I will be very happy for any suggestions you might have to help me.

Thanks

Assa

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