Here is a particular way to solve the problem: > test3 <- seq(from=as.Date("1/1/2000","%m/%d/%Y"),to=as.Date("1/3/2000", + "%m/%d/%Y"),length=3) > test3 [1] "2000-01-01" "2000-01-02" "2000-01-03" > zoo(table(dog.df$V1,dog.df$V2)[,1],order=test3) 2000-01-01 2000-01-02 2000-01-03 1 1 0 > cat.zoo <- zoo(table(dog.df$V1,dog.df$V2)[,1],order=test3) > dog.zoo <- zoo(table(dog.df$V1,dog.df$V2)[,1],order=test3) > dog.zoo <- zoo(table(dog.df$V1,dog.df$V2)[,2],order=test3) > tree.zoo <- zoo(table(dog.df$V1,dog.df$V2)[,3],order=test3) > dog.zoo 2000-01-01 2000-01-02 2000-01-03 1 0 1 > tree.zoo 2000-01-01 2000-01-02 2000-01-03
thanks though! sincerely, Erin -- Erin Hodgess Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: erinm.hodg...@gmail.com ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.