Dear Stephen,
You need the data in long format. Try melt()ing it first.
River.Mile <-c(202, 198, 190, 185, 179, 148, 119, 61)
TSS <- c(1:8)
DOC <- seq(2, by= 0.6, length.out=8)
z <- data.frame(River.Mile, TSS, DOC)
zMelt <- melt.data.frame(z, id.vars = "River.Mile")
library(ggplot2)
ggplot(zMelt, aes(x = River.Mile, y = value, colour = variable)) +
geom_point()
HTH,
Thierry
PS your example was not reproducible as you forgot library(lattice) in
your code.
------------------------------------------------------------------------
----
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 op 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 op r-project.org [mailto:r-help-bounces op r-project.org]
Namens stephen sefick
Verzonden: vrijdag 10 oktober 2008 16:18
Aan: R Help
Onderwerp: [R] ggplot adding points
I would like to do the following in ggplot:
what am I missing?
River.Mile <-c(202, 198, 190, 185, 179, 148, 119, 61)
TSS <- c(1:8)
DOC <- seq(2, by= 0.6, length.out=8)
z <- data.frame(River.Mile, TSS, DOC)
xyplot(TSS+DOC~River.Mile, data=z, auto.key=TRUE)
thanks
--
Stephen Sefick
Research Scientist
Southeastern Natural Sciences Academy
Let's not spend our time and resources thinking about things that are
so little or so large that all they really do for us is puff us up and
make us feel like gods. We are mammals, and have not exhausted the
annoying little problems of being mammals.
-K.
Mullis
______________________________________________
R-help op 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.
Dit bericht en eventuele bijlagen geven enkel de visie van de schrijver weer
en binden het INBO onder geen enkel beding, zolang dit bericht niet bevestigd is
door een geldig ondertekend document. The views expressed in this message
and any annex are purely those of the writer and may not be regarded as stating
an official position of INBO, as long as the message is not confirmed by a duly
signed document.