[R] Replace / with - in date

[David Winsemius]

On Apr 15, 2010, at 2:22 PM, prem_R wrote:

>
> Thanks Mr.Winsemius  for the proposed solution ,it worked fine.But  
> when came
> to the entire data frame containing 400000 rows ,i used the  
> following code
> as proposed by you
>
> a$date1<-gsub("/","-",a$date)
>
> got the following error:
> Error in `$<-.data.frame`(`*tmp*`, "date1", value = character(0)) :
>  replacement has 0 rows, data has 441906
>
> Please provide solution with the problem.

Please provide sample data for the problem.

>
> Thanks.
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David Winsemius, MD
West Hartford, CT