My problem is that I have a data set for every day of measurement in a
seperate file and I want to plot one parameter of the data for all the days
in one graph. I tried to use for loop but only the last data remains in the
program memory, I don`t know how to plot each day`s data continusly after
the others(or how to extending the x axis.) Would you please help me with
it?
This a plot for one day:
radiation.data
<-read.table("C:/updated_CFL_Rad_files/2008/RAD_2008_JD101_0410.dat", header
= TRUE,sep = ",", quote = " ", dec = ".")
> attach(radiation.data)
The following object(s) are masked from 'radiation.data (position 3)':
Batt_avg, Batt_st, Day, Hour, Kdown_avg, Kdown_st, LW_in, LW_in_st,
Minute, Month, PanelT_avg, PanelT_st, PAR_avg, PAR_st, Sec,
Tcase_avg, Tcase_st, Tdome_avg, Tdome_st, Thermopile_avg,
Thermopile_st, Tuv_avg, Tuv_st, Uva_avg, Uva_st, Uvb_avg, Uvb_st,
Year
> names(radiation.data)
[1] "Year" "Month" "Day" "Hour"
[5] "Minute" "Sec" "Batt_avg" "PanelT_avg"
[9] "Batt_st" "PanelT_st" "Kdown_avg" "Thermopile_avg"
[13] "Tcase_avg" "Tdome_avg" "LW_in" "PAR_avg"
[17] "Tuv_avg" "Uvb_avg" "Uva_avg" "Kdown_st"
[21] "Thermopile_st" "Tcase_st" "Tdome_st" "LW_in_st"
[25] "PAR_st" "Tuv_st" "Uvb_st" "Uva_st"
plot(((PAR_avg*0.216)/Uvb_avg),
main="Par/UVB",xlab="minutes",ylab="Par/UVB")
and this is the algorithm I tried for plotting all the data in one plot:
x<- matrix( list.files("C:/updated_CFL_Rad_files",full=TRUE)) # putting all
data sets in a matrix
for(i in 1:100) {
if(i < 101) next
radiation.data <-read.table(x[i], header = TRUE,sep = ",", quote = " ",
dec = ".")
attach(radiation.data)
plot(i*Hour*60+Minute,PAR_avg,main="PAR",xlab="Hour",ylab="Par")
dev.print(device=postscript, "C:/graph5.eps", onefile=FALSE,
horizontal=FALSE)
}
The plot I see is the last file's plot, I don't know how to keep previous
data and continue within the same plot.
* I have attached a sample of the data to this email.
--
Sincerely
Nasrin Pak
--
Sincerely
Nasrin Pak
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