Hi I'm having problems showing two time series in a plot, when one is of class zoo and the other one zooreg. I searched but did not find mention of this problem... do I do something wrong? How can I solve this? Thanks a lot!! x.date <- as.Date(paste(2004, rep(1:12, each=8), rep(c(1,4,8,12,16,20,25,28),6), sep = "-")) x <- zoo(rnorm(96), x.date) z<-zooreg(runif(12), start=c(2004,1), freq=12) y<-zooreg(runif(4), start=c(2004,1), freq=4) #try different plot methods: plot(cbind(x,z)) #does not work plot(cbind(y,z)) #show only z, probably because of point 9 in zoo-FAQ? plot(cbind(y,z), type="p") #then works! plot(x) lines(z,col=2) #z not ploted points(z,col=2) #z not ploted plot(z) lines(y,col=2) #work!
How to use zooreg and zoo in same plot?
2 messages · Matthieu Stigler, Gabor Grothendieck
Note that if you run this you do get a message telling you precisely what is wrong: Warning message: In merge.zoo(..., all = all, fill = fill, suffixes = suffixes, retclass = "zoo") : Index vectors are of different classes: Date numeric Try making them all Date class: time(z) <- as.Date(as.yearmon(time(z))) time(y) <- as.Date(as.yearqtr(time(y))) plot(na.approx(cbind(x, y, z))) On Mon, Apr 19, 2010 at 8:49 AM, Matthieu Stigler
<matthieu.stigler at gmail.com> wrote:
Hi I'm having problems showing two time series in a plot, when one is of class zoo and the other one zooreg. ?I searched but did not find mention of this problem... do I do something wrong? How can I solve this? Thanks a lot!! x.date <- as.Date(paste(2004, rep(1:12, each=8), rep(c(1,4,8,12,16,20,25,28),6), sep = "-")) x <- zoo(rnorm(96), x.date) z<-zooreg(runif(12), start=c(2004,1), freq=12) y<-zooreg(runif(4), start=c(2004,1), freq=4) #try different plot methods: plot(cbind(x,z)) #does not work plot(cbind(y,z)) #show only z, probably because of point 9 in zoo-FAQ? plot(cbind(y,z), type="p") #then works! plot(x) lines(z,col=2) #z not ploted points(z,col=2) #z not ploted plot(z) lines(y,col=2) #work!
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