Hi:
Does this work for you?
df <- read.table(textConnection("
pool age age2 density body_length body_length2
1 1 7.4 11.3 25 0.887 1.322550
2 2 7.4 11.3 100 0.921 1.152000
3 3 7.4 11.3 250 0.896 1.136300
4 4 7.4 11.3 75 0.723 0.955950
5 5 7.4 11.3 500 0.755 1.113300
6 6 7.4 11.3 50 0.869 1.169833"), header = TRUE)
closeAllConnections()
with(df, plot(age,body_length, pch=as.numeric(pool),
col=as.numeric(density),
xlim=c(6,13), ylim=c(0.7,1.6)))
with(df, points(age2, body_length2, pch=as.numeric(pool),
col=as.numeric(density)))
with(df, segments(age, body_length, age2, body_length2, col =
as.numeric(density)))
HTH,
Dennis
On Thu, Apr 22, 2010 at 8:06 PM, Kristiina Hurme
<kristiina.hu...@uconn.edu>wrote:
>
> Hello everyone,
> I'm trying to plot the initial and final size of some tadpoles and look at
> their growth rates (slope of line). They are divided into 6 densities, and
> so far I have plotted the initial and final sizes (these are means for a
> pool), and color coded for the 6 densities, but I want a line to connect
> the
> initial and final value for each pool (also color coded by density). Any
> ideas?
> I'm hoping to see what the effect of density is on growth, and there are 4
> replicates for each density. The initial and final sizes are staggered, 1/2
> were measured at age 7.3 and 11, and the other 1/2 were measured at age 8.5
> and 12.
>
> here's a sample
>
> pool age age2 density body_length body_length2
> 1 1 7.4 11.3 25 0.887 1.322550
> 2 2 7.4 11.3 100 0.921 1.152000
> 3 3 7.4 11.3 250 0.896 1.136300
> 4 4 7.4 11.3 75 0.723 0.955950
> 5 5 7.4 11.3 500 0.755 1.113300
> 6 6 7.4 11.3 50 0.869 1.169833
>
> and as far as i've gotten
> > plot(age,body_length,pch=as.numeric(school), col=as.numeric(density),
> > xlim=c(6,13), ylim=c(0.7,1.6))
> > points(age2, body_length2, pch=as.numeric(school),
> > col=as.numeric(density))
>
>
> http://n4.nabble.com/forum/FileDownload.jtp?type=n&id=2023096&name=Screen_shot_2010-04-22_at_11.03.08_PM.png
>
> thanks! kristiina
>
> --
> View this message in context:
> http://r.789695.n4.nabble.com/help-with-plotting-lines-linking-two-sets-of-points-tp2023096p2023096.html
> Sent from the R help mailing list archive at Nabble.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.
>
[[alternative HTML version deleted]]
______________________________________________
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.
