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as.Date with characters error

arun 
Hi,
Did you checked after removing "e" from "formate"?

ortho$test.dat <- as.Date(ortho$xray.date, formate="%d-%b-%y")
?
A.K.


----- Original Message -----
From: Liz Hare <doggene at earthlink.net>
To: r-help at r-project.org
Cc: 
Sent: Tuesday, July 30, 2013 12:00 PM
Subject: [R] as.Date with characters error

Hello,

I'm trying to convert dates in the format dd-mmm-yy using as.Date.
I have two columns like this, and it works on one but not on the other.
? ? DogID BirthDate xray.date
1? 11877 23-Aug-87 15-Feb-88
2? 11877 23-Aug-87 15-Feb-88
3?  3599 21-Feb-87 21-Feb-88
4?  3599 21-Feb-87 21-Feb-88
5?  3599 21-Feb-87 21-Feb-88
6?  3599 21-Feb-87 21-Feb-88
7?  3599 21-Feb-87 21-Feb-88
8?  9563 29-Jun-87 29-Jun-88
9?  9563 29-Jun-87 29-Jun-88
10? 9563 29-Jun-87 29-Jun-88
? [1] "1987-08-23" "1987-08-23" "1987-02-21" "1987-02-21" "1987-02-21"
? [6] "1987-02-21" "1987-02-21" "1987-06-29" "1987-06-29" "1987-06-29"
Error in charToDate(x) :
?  character string is not in a standard unambiguous format
R version 3.0.1 (2013-05-16)
Platform: x86_64-w64-mingw32/x64 (64-bit)

locale:
[1] LC_COLLATE=English_United States.1252
[2] LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C
[5] LC_TIME=English_United States.1252

attached base packages:
[1] stats? ?  graphics? grDevices utils? ?  datasets? methods?  base
Does anyone have a guess about what's going on? I've googled for this 
error but haven't found any where the problem is with this type of 
conversion.

Thanks,
Liz

Thread (3 messages)

Liz Hare as.Date with characters error Jul 30 arun as.Date with characters error Jul 30 Liz Hare as.Date with characters error Jul 30