[R] Problem on plotting TS using GGPLOT

Bogaso bogaso.christofer at gmail.com
Fri Sep 25 15:32:11 CEST 2009


Thanks for this reply. Here my goal is to plot multiple time series in the
same plotting window. Here y variable has 306 elements, however each value
is associated with factor which is represented by "vv" variable.

 I want to plot total 6 time series, for example 1st 51 values of y,
represented by "a" should be treated as single TS, with index as index of
"dat2".....................similarly 2nd 51 values of y, represented by "b"
should be treated as another single TS, with index as index of
"dat2"...........and so on.

What is the problem here?

Thanks,



ONKELINX, Thierry wrote:
> 
> 
> You are mixing data from two datasets with different lengths. Your x
> variable has 51 elements, while the y variable has 306 elements? What
> did you expect to happen with that? 
> 
> Use only one dataset within a geom(). Otherwise you are likely the get
> in troubles.
> 
> HTH,
> 
> Thierry 
> 
> 
> ------------------------------------------------------------------------
> ----
> ir. Thierry Onkelinx
> Instituut voor natuur- en bosonderzoek / Research Institute for Nature
> and Forest
> Cel biometrie, methodologie en kwaliteitszorg / Section biometrics,
> methodology and quality assurance
> Gaverstraat 4
> 9500 Geraardsbergen
> Belgium
> tel. + 32 54/436 185
> Thierry.Onkelinx at inbo.be
> www.inbo.be
> 
> To call in the statistician after the experiment is done may be no more
> than asking him to perform a post-mortem examination: he may be able to
> say what the experiment died of.
> ~ Sir Ronald Aylmer Fisher
> 
> The plural of anecdote is not data.
> ~ Roger Brinner
> 
> The combination of some data and an aching desire for an answer does not
> ensure that a reasonable answer can be extracted from a given body of
> data.
> ~ John Tukey
> 
> -----Oorspronkelijk bericht-----
> Van: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
> Namens bogaso.christofer
> Verzonden: vrijdag 25 september 2009 14:47
> Aan: R-help at stat.math.ethz.ch
> Onderwerp: [R] Problem on plotting TS using GGPLOT
> 
> Hi, I have following codes :
> 
> 
> 
> 
> 
> library(zoo); library(ggplot2); library(plyr)
> 
> 
> 
> 
> 
> dat <- rnorm(306); vv <- letters[1:6]; dat1 <- data.frame(dat, vv)
> 
> dat2 = zooreg(rnorm(51), as.yearmon(as.Date("2000-01-01")),
> frequency=12)
> 
> 
> 
> ggplot(dat1) +
> 
>             geom_line(aes(y=dat, x=index(dat2), colour=vv), group=vv,
> size =
> 1.3)
> 
> 
> 
> 
> 
> However I got error while plotting them :
> 
> Error in data.frame(x = c(2000, 2000.08333333333, 2000.16666666667,
> 2000.25,
> : 
> 
>   arguments imply differing number of rows: 51, 306
> 
> 
> 
> I could not find why that error is coming. Any idea please ?
> 
> 
> 
> Thanks,
> 
> 
> 	[[alternative HTML version deleted]]
> 
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