I have dataset with time sine 1800-01-01 and extracted data from 1981 to 2019 and used these lines for the data conversion: > time_d <- as.Date(time, format="%j", origin=as.Date("1800-01-01")) > time_years <- format(time_d, "%Y") > time_months <- format(time_d, "%m") > time_year_months <- format(time_d, "%Y-%m") > head(time_d) [1] "6095-12-22" "6096-01-15" "6096-02-08" "6096-03-03" "6096-03-27" "6096-04-20"
As you see these gregorian dates are unrealistic and wonder what I am doing wrong? The time from the raw file in Jd are like this: > time [1] 1569072 1569096 1569120 1569144 1569168 1569192 1569216 1569240etc. Hope hint and/or suggestion to solve this. Best regards [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.