[R] Extracting "row.names"

From: Patrick Richardson <xplaner800_at_yahoo.com>
Date: Mon, 23 Jun 2008 09:09:18 -0700 (PDT)


I'm trying to extract the row names of a table I have read into R.

> data <- read.table("mesodata.txt", header=TRUE, row.names=1)

When I try to extract them using,

> names <- data$row.names

I get,

> names

NULL I've tried changing to a matrix, data frame, etc. and still get "NULL". I've checked ?row.names as well as help on extracting part of an object, etc. and unless I'm missing something obvious (likely), I can't figure out how to extract them.

I want to extract the row names (which are basically gene id's) as well as some other columns (which I can do successfully) and "cbind" them into another data frame (which I can also do successfully). I just can't get the row names extracted (Assigned) to an seperate object.

Any suggestions would be appreciated.

Many Thanks,


> sessionInfo()

R version 2.7.0 (2008-04-22)

LC_COLLATE=English_United States.1252;LC_CTYPE=English_United States.1252;LC_MONETARY=English_United
States.1252;LC_NUMERIC=C;LC_TIME=English_United States.1252

attached base packages:
[1] stats graphics grDevices utils datasets methods base

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