r - Change Date print format from yyyy-mm-dd to dd-mm-yyyy

Question

I am trying to convert the format of the dates from yyyy-mm-dd to dd-mm-yyyy format. For example:

D <- "06.12.2012"  
D <- as.Date(D, "%d.%m.%Y")
D
# [1] "2012-12-06"

How can I convert it to "06-12-2012"?

Answer 1

a) Parse

   d <- as.Date( "06.12.2012", "%d.%m.%Y")

b) Format

   strftime(d, "%m-%d-%Y")

or

   format(d, "%m-%d-%Y")