[R] (no subject)

[Tena Sakai]

Hi,

When I emulate what's suggested I get an error (shown below).
What does this mean?
Thank you.

> Province <- c(1, 1, 13)
> District <- c(1, 2, 2)
> 
> df$Distric_Unique <- with(df, paste(Province, District, sep=".") )
Error in eval(substitute(expr), data, enclos = parent.frame()) :
  invalid 'envir' argument
> 

Regards,

Tena Sakai
tsakai at gallo.ucsf.edu


On 1/20/10 6:45 PM, "David Winsemius" <dwinsemius at comcast.net> wrote:

> 
> On Jan 20, 2010, at 9:34 PM, teurlai magali wrote:
> 
>> Hi
>> 
>> is there a way in R to create a new column vector with the numbers
>> of 2 others columns simply appended?
>> 
>> Example : I have a column with provinces codes (1 to 19)
>> I have a second column with districts codes (1 to ##, depending on
>> the province)
>> I want to create a third column with a code that would be unique for
>> each district:
>> 
>> Province  District   District_Unique
>> 1             1            11
>> 1             2            12
>> 13           2            132
>> 
> Better to put in a separator. That way you can tell Prov=1, Distr=11
> from Prov=11, Distr=1.  Try:
> 
> df$Distric_Unique <- with(df, paste(Province, District, sep=".") )
> 
> 
>> I can create a loop, but it becomes complicated with numerous data
>> 
>> Thanks for your help
>> 
>> 
>> 
>> 
>> 
>> [[alternative HTML version deleted]]
>> 
>> ______________________________________________
>> 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.
> 
> David Winsemius, MD
> Heritage Laboratories
> West Hartford, CT
> 
> ______________________________________________
> 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.