The reason that you need the 'as.POSIXct' is that the 'abline'
function does not recognize variables with POSIXlt class.
> methods(abline)
no methods were found
Warning message:
In methods(abline) : function 'abline' appears not to be generic
> methods(plot)
[1] plot.acf* plot.data.fram
Sorry for the lack of the plot. It's is just a simple xy plot with xvalues
formated as shown in my post (strptime()).
Anyway, here a working example:
>
> rm(list=ls())
>
> x<-c(100*1500:1559, 100*1600:1659)
> x<-strptime(x, format="%H%M%S")
> y<-c(CO2$conc, CO2$conc[1:36])
>
> plot(x, y, pc
Dear Fritz,
(had to guess the name as well as most of the other things not given)
On Wed, 15-Jul-2009 at 02:25PM -0700, F!! wrote:
|>
|> Hi,
|>
|> I try to create a vertical line in my plot, which has a xaxis comprising
|> time formated data.
|>
|> This is what I tried:
|>
|> ---
On Jul 15, 2009, at 5:25 PM, F!! wrote:
Hi,
I try to create a vertical line in my plot, which has a xaxis
comprising
time formated data.
This is what I tried:
y<-152833
x<-strptime(y, format="%H%M%S")
abline(v=x, col="red")
But, but, but ... where is your plot functi
Hi,
I try to create a vertical line in my plot, which has a xaxis comprising
time formated data.
This is what I tried:
y<-152833
x<-strptime(y, format="%H%M%S")
abline(v=x, col="red")
for some reason, it doesn't work and no error msg is displayed...
I hope
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