[R] Wrong date fromat?

[arun]

Hi,
Try
vec1 <- 10958:10963 
 as.Date(vec1,origin="1960-01-01")
#[1] "1990-01-01" "1990-01-02" "1990-01-03" "1990-01-04" "1990-01-05"
#[6] "1990-01-06"

A.K.



I have imported a stata data into R and wanted to convert the date. 
 The format went OK, but the output doesn't represent my data. The head 
of the imported data is this one 

> head(df$date) 
[1] 10958 10959 10960 10961 10962 10963 

I tried to convert the date using the zoo package: 

library("zoo") 
df$date<-as.Date(df$date) 
head(df$date) 

> head(df$date) 
[1] "2000-01-02" "2000-01-03" "2000-01-04" "2000-01-05" "2000-01-06" "2000-01-07" 

However my date starts with January 1, 1990 and the converted data starts from January 2, 2000. 

What have I done wrong?