plotting zoo object
Please use dput(x) to display data in your posts in easily copied form. Try this: library(zoo) z <- zoo(matrix(1:48, 4, dimnames = list(NULL, month.abb)), 1968:1971) zz <- zooreg(c(coredata(z)), start = as.yearmon(1968), freq = 12) You could also consider using a ts series: tt <- as.ts(zz)
On Thu, Mar 13, 2008 at 5:18 PM, stephen sefick <ssefick at gmail.com> wrote:
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
1968 NA 10.7 10.0 9.3 7.4 8.1 9.3 9.5 8.5 10.0 10.0 13.0
1969 13.0 9.9 7.0 5.9 NA 6.5 7.3 6.6 NA NA NA NA
1970 10.7 8.9 8.1 NA NA 7.1 7.7 NA 6.5 NA 8.3 NA
1971 NA 11.6 NA NA 7.8 NA NA 6.2 NA NA 8.4 NA
x<-read.zoo("textconnection", sep=",", format= "%Y", header=TRUE)
plot(x)
#this plots all of the years by each month. I would like to plot one
long time series from 1968 to 1971
#is there an easy way to do this? I can reformat the data in excel so
that the index will be year then month, but this will take a while.
the end goal is #to be able to apply some signal processing things
like spectral density after fitting the seasonal trend etc.
thanks
Stephen
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