A reproducible example would help. What is "Phenology_VE$Date"? This works
> as.Date("2009-09-01", "%Y-%m-%d")
[1] "2009-09-01"
Is this the date you wanted:
> as.Date(39936, origin='1900-2-1')
[1] "2009-06-05"
On Wed, Sep 2, 2009 at 2:09 AM, swertie wrote:
>
> As suggested in the article R
As suggested in the article R News 4/1, I used
as.Date(as.character(Phenology_VE$Date), "%Y-%m-%d"), however this function
returns me only "NA" values
as.Date(as.character(Phenology_VE$Date), "%Y-%m-%d")
[1] NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
NA
[26] NA NA NA
See R News 4/1. The article on dates there discusses how they
work and discusses Excel's dates as well.
On Tue, Sep 1, 2009 at 1:58 PM, swertie wrote:
>
> Hello, I plot the abundance of a species in relation to the date. To have the
> date as a continous variable I put it in the format "standard"
On Sep 1, 2009, at 3:13 PM, Erik Iverson wrote:
We will need a reproducible example! Please give us R commands that
display the behavior you're observing:
For example,
I am having trouble understanding the as.Date function. When I
input 39939, I would like to get "06.05.2009", but when
On Sep 1, 2009, at 1:58 PM, swertie wrote:
Hello, I plot the abundance of a species in relation to the date. To
have the
date as a continous variable I put it in the format "standard" in
excel
(f.ex. 39939 means 06.05.2009). R uses 39939 on the x axis, but I
would like
to have "06.05". I
We will need a reproducible example! Please give us R commands that display
the behavior you're observing:
For example,
I am having trouble understanding the as.Date function. When I input 39939, I
would like to get "06.05.2009", but when I try it, I get
> as.Date(39939)
Error in as.Date.nu
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