[R] Time series graphs, question about using zoo

[fang liu]

Hi,
Can you tell me what is the meaning for "tail, 1"  in "aggregate"?
I also want to get some similar graph, but the data is not time series data.
Suppose here is my data one, I want a graph with x-axis is just the 
index(1:9).
The graph plot all the variable A, B,C,D. So there should be 4 lines for 
each graph. For the A line, at each time point, the letter A should be on 
the line. And the same goes for the B line.
                    A           B            C        D
>                  8           4             9         8
>                  7           5             4         7
>                  6           8             4         4
>                  3           7              6         2
>                  5           1             8         5
>                  6           4              7        1
>                  2           8             3         4
>                  1           2              4         8
>                  4           3              1        9

So I add a name for each row
rownames(one) <- c(1:9)
z <- zooreg(as.matrix(one), start = 1, freq = 1)
z <- aggregate(z, as.Date, tail, 1)
plot(z, plot.type = "single",  type = "o",
	pch = c("A", "B", "C", "D"), lty = 1:2)

I get the plot, which I think it should be right. but the problem is that 
the x-axis still have month (Jan, ) on it and I didnot get "A,B,C,D" on my 
graph, is there any thing wrong?



>From: "Gabor Grothendieck" <ggrothendieck at gmail.com>
>To: "Bill Pepe" <sonicbill12 at yahoo.com>
>CC: r-help at r-project.org
>Subject: Re: [R] Time series graphs
>Date: Thu, 20 Sep 2007 14:15:54 -0400
>
>Using plot.zoo in the zoo package try this:
>
>Lines <- "Bob.A         Bob.B            Tom.A        Tom.B
>  Jan              8        4             9         8
>  Feb             7         5             4         7
>  Mar             6         8             4         4
>  Apr             3         7              6         2
>  May            5         1             8         5
>  Jun             6         4              7        1
>  July             2         8             3         4
>  Aug             1        2              4         8
>  Sep            4          3              1        9
>"
>DF <- read.table(textConnection(Lines))
>
>library(zoo)
>z <- zooreg(as.matrix(DF), start = as.yearmon(as.Date("2007-01-01")), freq 
>= 12)
>z <- aggregate(z, as.Date, tail, 1)
>plot(z, plot.type = "single",  type = "o",
>	pch = c("A", "A", "B", "B"), lty = 1:2)
>legend("bottomleft", c("Bob", "Tom"), lty = 1:2)
>
>
>
>On 9/20/07, Bill Pepe <sonicbill12 at yahoo.com> wrote:
> > I'm fairly new to S-Plus and I need to get this done quickly. Suppose I 
>have the following fake data below:
> >
> >  There are two companies, call them Bob and Tom. Each have two 
>variables, call them A and B, that have observations.
> >
> >                         Bob                 Tom
> >
> >                    A         B            A        B
> >  Jan              8        4             9         8
> >  Feb             7         5             4         7
> >  Mar             6         8             4         4
> >  Apr             3         7              6         2
> >  May            5         1             8         5
> >  Jun             6         4              7        1
> >  July             2         8             3         4
> >  Aug             1        2              4         8
> >  Sep            4          3              1        9
> >
> >  Here is what I want to do: I want to make two different graphs, one for 
>Bob and one for Tom. For each graph, plot both variables A and B. Connect 
>the A values with a line, and connect the B values with a different type of 
>line. So there should be two lines for each graph. For the A line, at each 
>time point, the letter A should be on the line. And the same goes for the B 
>line. Either R or S-Plus since they are essentially the same.
> >
> >  I'm sure this is easy, but any help would be greatly appreciated.
> >
> >  Thanks,
> >
> >  Bill
> >
> >
> > ---------------------------------
> > Pinpoint customers who are looking for what you sell.
> >        [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > R-help at 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.
> >
>
>______________________________________________
>R-help at r-project.org mailing list
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>PLEASE do read the posting guide 
>http://www.R-project.org/posting-guide.html
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