Getting ready

First, create and save the R objects interactively, as shown in the following code. Make sure you have write access to the R working directory.

> customer <- c("John", "Peter", "Jane") 
> orderdate <- as.Date(c('2014-10-1','2014-1-2','2014-7-6')) 
> orderamount <- c(280, 100.50, 40.25) 
> order <- data.frame(customer,orderdate,orderamount) 
> names <- c("John", "Joan") 
> save(order, names, file="test.Rdata") 
> saveRDS(order,file="order.rds") 
> remove(order) 

After saving the preceding code, the remove() function deletes the object from the current session.