Hi,
I'm Roslina, PhD student of University of South Australia, Australia
from school Maths and Stats. I use S-Plus before and now has started
using R-package. I used
to analyse rainfall data using julian date. Is there any similar
function that you can suggest to me to be used in R-package? Thank you
so much for your attention and help.
Here are some of my codes:
# dt1-data
# mt1-begin month, mt2- end month, nn=year, n= no of years
# da - days in the following month
# yr1 - year begin
define.date1<-function(dt1,mt1,mt2,nn,da)
{ mt2<-mt2+1
start<-julian(mt1, 1, nn, origin=c(month=1, day=1, year=1971))+1
end<-julian(mt2, 1, nn, origin=c(month=1, day=1, year=1971))+da
a<-dt1[start:end,]
#am<-as.matrix(a[,5])
}
seq.date1<-function(dt1,mt1,mt2,n,yr1,da)
{ yr1<-yr1-1
for (i in 1:n)
{ kp1<-define.date1(dt1,mt1,mt2,yr1+i,da)
if (i==1) kp2<-kp1
else kp2<-rbind(kp2,kp1)
}
kp2
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