[R] problem with dates
sledepi at operamail.com
Thu Sep 22 21:05:55 CEST 2005
I Have been trying to convert a vector of dates into julian dates using the following commands: as.date & as.numeric. I can convert a date no problem by doing the following:
as.numeric (as.date ("9/21/2004"))
but as soon as I try to do an entire vector I am given the following:
Error in as.date(date1) : Cannot coerce to date format
I have tried starting with a number of different date formats including dd/mm/yy, dd/mm/yyyy, month, day, year..
Following is a sample of the vector of dates that I am using:
 7/1/2005 4/27/2005 7/15/2004 11/30/2004 1/8/2005 2/7/2005
 7/17/2004 4/1/2004 1/4/2005 12/27/2004 1/5/2005 5/17/2005 ....
it is a factor and its mode is numeric.
What do I need to do?
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