IHi All, l, I am reading a csv file and one of the columns is named as "mydate" with this form, 2019-09-16.
I am reading this file as dat=read.csv("myfile.csv") the structure of the data looks like as follow str(dat) mydate : chr "09/16/2019" "02/21/2021" "02/22/2021" "10/11/2017" ... Please note the format has changed from YYYY-mm-dd to mm/dd/YYYY When I tried to change this as a Date using as.Date(as.Date(mydate, format="%m/%d/%Y" ) I am getting this error message Error in charToDate(x) : characte string is not in a standard unambiguous format My question is, 1. how can I read the file as it is (i.e., without changing the date format) ? 2. why does R change the date format? Thank you, ______________________________________________ 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.