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
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On Thu, Nov 4, 2010 at 8:49 PM, Nasrin Pak 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
>
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>
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>
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