TOC_NI<-read.csv2("C:/Users/hilliges/Desktop/Master/Daten/Statistik/TOC-NI.csv",
sep=";", dec=",", encoding="UTF-8")
circ<-TOC_NI[order(TOC_NI$NI,decreasing=T),][1:4,]
plot(NI~TOC,data=TOC_NI,col="blue", pch=16, xlim=c(0,4500000))
abline(lm(NI~TOC,data=TOC_NI),col = "red",lwd=3)
points(NI~TOC,data=TOC_NI,col='red',pch=1,size=3) ## this line is coloring
all points because you're using TOC_NI still
points(NI~TOC,data=circ,col='red',pch=1,size=3) ## now we're only plotting
the four points in circ.
sorry for the confusion. however, in the future please provide a
reproducible data set along with your question so we can more easily help.
Justin
On Fri, Jan 20, 2012 at 5:49 AM, Geophagus
<falk.hilli...@twain-systems.com>wrote:
> Dear Petr and Justin,
> my problem ist, that I only want to have the 4 highest values for "Ni" as a
> red point or with a red circle. The other points should not be modificated.
> In your proposals always all points get a red circle or a red point not
> only
> the 4 highest Ni values!
> I hope you could understand me!
> Thanks for your help!
> GeO
>
>
> --
> View this message in context:
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> Sent from the R help mailing list archive at Nabble.com.
>
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