[R] ROWNAMES error message

[Liaw, Andy]

The object to be assigned as rownames need to be a vector, not a data frame.
Try something like:

rownames(SAMPLES) <- GENE_NAMES[[1]]

Also, don't confuse a data frame from a matrix:  They are very different.

Andy

From: mark salsburg
> 
> I am getting an error message, which I do not know the source to.
> 
> I have a matrix SAMPLES that has preexisting rownames that I 
> would like to change. GENE_NAMES contains these rownames.
> 
> 
> > rownames(SAMPLES) = GENE_NAMES
> Error in "dimnames<-.data.frame"(`*tmp*`, value = 
> list(list(V1 = c(3843,  :
>         invalid 'dimnames' given for data frame
> > dim(SAMPLES)
> [1] 12626    20
> > dim(GENE_NAMES)
> [1] 12626     1
> > is.data.frame(SAMPLES)
> [1] TRUE
> > is.data.frame(GENE_NAMES)
> [1] TRUE
> 
> I have tried converting GENE_NAMES to a factor, R will not 
> allow me because its says "x must be atomic"
> 
> ANY IDEAS??
> 
> Thank you
> 
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