Hi Nasrin,

1) You didn't define mean.radiation in your code (for example
using mean.radiation<-NULL)
2) Also, you're using "attach", which is a good recipe for forgetting
something in your environment which will lead into troubles.
3) You didn't define i (for example i <- 1:30)


Tal




----------------Contact
Details:-------------------------------------------------------
Contact me: Tal.Galili@gmail.com |  972-52-7275845
Read me: www.talgalili.com (Hebrew) | www.biostatistics.co.il (Hebrew) |
www.r-statistics.com (English)
----------------------------------------------------------------------------------------------




On Thu, Nov 4, 2010 at 8:49 PM, Nasrin Pak <astronasrin@gmail.com> wrote:

> Hi;
> I have 30 data sets and I managed to take the average of a variable in each
> set and put them in a vector like variable(It contains NaN data as well).
> x<- matrix( list.files("C:/updated_CFL_Rad_files/2007/11",full=TRUE))
>  for(i in 1:30) {
>  radiation.data <-read.table(x[i], header = TRUE,sep = ",", quote = " ",
> dec = ".")
>  attach(radiation.data)
>  names(radiation.data)
>  mean.radiation[i]<- mean(PAR_avg,na.rm = TRUE)
>         }
> How can I plot this vector (mean.radiation[i]) vs i ?
> I tried to do so but there was an error:
> Error in plot.window(...) : need finite 'ylim' values
> In addition: Warning messages:
> 1: In min(x) : no non-missing arguments to min; returning Inf
> 2: In max(x) : no non-missing arguments to max; returning -Inf
>
> --
> Sincerely
>
> Nasrin  Pak
>
>        [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>

	[[alternative HTML version deleted]]

