# [R] How to stack row vector on top of each other?

Uwe Ligges ligges at statistik.tu-dortmund.de
Sat Feb 16 20:16:55 CET 2013

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On 15.02.2013 16:37, Giovanni Petris wrote:
>
> c(a, b)

But then, if he is actually going to have a row vector, t() is needed -
and one may want to answer the OP who may not read this list ....

Best,
Uwe Ligges

>
> ?
>
> HTH,
> Giovanni
> ________________________________________
> From: r-help-bounces at r-project.org [r-help-bounces at r-project.org] on behalf of Nordlund, Dan (DSHS/RDA) [NordlDJ at dshs.wa.gov]
> Sent: Thursday, February 14, 2013 7:19 PM
> To: r-help
> Subject: Re: [R] How to stack row vector on top of each other?
>
>> -----Original Message-----
>> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
>> project.org] On Behalf Of C W
>> Sent: Thursday, February 14, 2013 5:08 PM
>> To: r-help
>> Subject: [R] How to stack row vector on top of each other?
>>
>> Hi list,
>> How do you actually stack a vector on top of each other?  Say, I want
>> everything in a row vector.  Neither rbind(), nor cbind() will do the
>> job.
>>   It gives me 2 dimension.
>>
>> Here's my reproducible example:
>>> a <- rnorm(10)
>>> b <- rnorm(10)
>>> c <- cbind(a,b)
>>> dim(c)
>> [1] 10  2
>>
>>> d <- rbind(a,b)
>>> dim(d)
>> [1]  2 10
>>
>> Thanks,
>> Mike
>
> I guess I don't know what you mean by "actually stack a vector on top of each other".  Given the vectors
>
> a <- 1:3
> b <- 4:6
>
> What result do you want from "stacking" a and b?
>
>
> Dan
>
> Daniel J. Nordlund
> Washington State Department of Social and Health Services
> Planning, Performance, and Accountability
> Research and Data Analysis Division
> Olympia, WA 98504-5204
>
>
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