[R] loop does not work

[aude Valade]

Hi,
I am new to R and am trying to do a loop but it seems not to run after one
turn.
What I want to do is subset my dataframe (extract one station and one day)
to calculate and store the maxima that can then be plotted.
I have an error message at the end of each loop:
Error: unexpected '}' in "}"

Here is my code:
*********************************************
datafile <-
read.csv(file="all_stations_24h_at_rh_0701-0718.csv",head=TRUE,sep=",")

#-------------build maxima vector----------------
maxima<-mat.or.vec(132,18)
Temp<-mat.or.vec(1,24)
regions<-levels(datafile$Region)
stations<-levels(factor(datafile$Stn.Id))
days<-levels(datafile$Date)

i=1
j=1

        while(i<length(stations)) {
            while (j<length(days) {
                print(j)
                print(days[j])
                #Temp <- as.numeric(levels(subset(datafile$Air.Temp...F.,
datafile$Stn.Id==stations[i] &
datafile$Date==days[j])))[subset(datafile$Air.Temp...F.,
datafile$Stn.Id==stations[i] & datafile$Date==days[j])]
                print(Temp)
                Temp <-
as.numeric(as.character(subset(datafile$Air.Temp...F.,
datafile$Stn.Id==stations[i] & datafile$Date==days[j])))
                maxima[[i,j]]<-max(Temp)
                j<-j+1
                }

            print(i)
            x11()
            print(stations[i])
            plot(maxima[i,], ylim=c(50,110), col="red")
            lines(maxima[i,])
            title(main=stations[i])
            i<-i+1
            }
**************************************

Thank you for your help.

Aude

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