[R] Length problem

[jim holtman]

You were asking for the length of the first element of the vector
coppie, which is of course 1.  Did you mean to say lgngth(coppie)?
length(data[,4]) is asking how many elements in that column, which
seems to be 5.  also your statement

coppie <- c(data[4:length(data)])

seems strange.  What did you intend to do?

On 2/11/08, Paolo Grillo <paolo.grillo at guest.unimi.it> wrote:
>
>   Hi all
>   I have this problem:
>   In my database .dta, called "data" I have five rows
>   data<-read.dta("C:\\2_CO_mmobile_ALL_Rid.dta")
>   # From this database  I wuold like to create another
>   coppie<-c(data[4:length(data)])
>   but I find this
>
>   # Length of  original data
>   length(data[,4])
>   5                       RIGHT!!
>   # Length of new data
>   length(coppie[1])
>   1                      WHY??
>   Thank you all for your help
>   Paolo Grillo
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>


-- 
Jim Holtman
Cincinnati, OH
+1 513 646 9390

What is the problem you are trying to solve?