[R] Odp: How to manipulate a data frame

[Petr PIKAL]

Hi

I just guess what you want but maybe

rownames(log2.ratios) <-log2ratios$Clone

changes rownames and then you could get your output (after getting rid of 
first column).

If you just want an output to spreadsheet without row names column, look 
at ?write.table especially row.names option.

regards
Petr
petr.pikal at precheza.cz

r-help-bounces at r-project.org napsal dne 29.11.2007 17:06:57:

> Dear list,
> I have a data frame like:
> 
> > log2.ratios[1:3,1:4]
>        Clone                  a1             a2             a3
> 1 GS1-232B23      -0.0207500 0.17553833  0.21939333
> 2 RP11-82D16      -0.1896667 0.02645167 -0.03112333
> 3 RP11-62M23      -0.1761700 0.08214500 -0.04877000
> 
> how to make it to look like:
> 
> > log2.ratios[1:3,1:4]
>                                  a1             a2             a3
>      a4
> GS1-232B23      -0.0207500 0.17553833  0.21939333     0.0008
> RP11-82D16      -0.1896667 0.02645167 -0.03112333     0.007
> RP11-62M23      -0.1761700 0.08214500 -0.04877000    0.7666
> 
> I tried as.matrix(log2.ratios) and it seems it is not working.
> 
> Thanks a lot!
> 
> Allen
> 
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