[R] Merging multiple columns into one column

Bert Gunter gunter.berton at gene.com
Sat Sep 29 00:17:01 CEST 2012


?unlist

(A data frame is a list, as ?data.frame explains. Also the Intro to R
tutorial, which should be read by everyone beginning with R).

-- Bert

On Fri, Sep 28, 2012 at 2:51 PM, Meredith Ballard LaBeau
<mmballar at mtu.edu> wrote:
> Good Evening-
>  I have a dataframe that has 10 columns that has a header and 7306 rows in
> each column, I want to combine these columns into one. I utilized the stack
> function but it only returned 3/4 of the data...my code is:
> where nfcuy_bw is the dataframe with 7305 obs. and 10 variables
> Once I apply this code I only receive a data frame with 58440 obs. of 2
> variables, of which there should be 73,050 obs. of 2 variables, just
> wondering what is happening here?
>
>  View(nfcuy_bw)
>
> attach(nfcuy_bw)
>
> cuyahoga_nf<-data.frame(s5,s10,s25,s27,s33,s41,s51,his_c)
>
> cuy_nf<-stack(cuyahoga_nf)
>
> Thanks
> Meredith
>
> --
> Doctoral Candidate
> Department of Civil and Environmental Engineering
> Michigan Technological University
>
>         [[alternative HTML version deleted]]
>
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-- 

Bert Gunter
Genentech Nonclinical Biostatistics

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