without knowing much about your data or the base plotting...
I'd use the library ggplot2.
First, you'll need to format your dates to POSIXct
AggData$time <- as.POSIXct(AggData$time,format='%H:%M')
Then plotting is trivial.
ggplot(AggData,aes(x=time,y=value))+geom_points()
or +geom_line() if you'd rather.
Hope that helps,
Justin
On Tue, Nov 29, 2011 at 10:07 AM, threshold <r.kozar...@gmail.com> wrote:
>
> Dear R useres, got the following problem. Given the AggData (listed below)
> I need to plot AggData[,2] vs time (AggData[,1]) for chosen 'rows'. Ive
> done
> already:
>
> plot(AggData[rows,2], xaxt='n')
> axis(1,at=seq(1,length(rows),1),sub("","", AggData[rows,1]))
>
> which works, but I need to list only chosen data points, say full hours or
> every 60th point, something like:
>
> axis(1,at=seq(1,seq(1,length(rows),60)),sub("", "",
> AggData[day.rows[seq(1,length(rows),60)],2]))
>
> but does not work. Could be nice if time on the x-axis is in H:m format (no
> seconds).
>
> In the original data time bout is 1 minute, e.g. 17:19:35, 17:20:35,
> 17:21:35 . Taken every 100th for brevity yields
>
> > (AggData[seq(1,length(rows),100),c(2,7)])
>
> time value
> 1 17:19:35 80.68327
> 101 18:59:35 80.97230
> 201 20:39:35 78.30810
> 301 22:19:35 80.41558
> 401 23:59:35 77.01051
> 501 01:39:35 77.19687
> 601 03:19:35 78.20762
> 701 04:59:35 77.13315
> 801 06:39:35 76.29110
> 901 08:19:35 75.32090
> 1001 09:59:35 85.32890
> 1101 11:39:35 79.86978
> 1201 13:19:35 83.32418
> 1301 14:59:35 78.26018
> 1401 16:39:35 79.06434
>
>
> Thanks in advance.
> Best, robert
>
>
>
>
> --
> View this message in context:
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> Sent from the R help mailing list archive at Nabble.com.
>
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