Hi Maria,
Perhaps something like this:
mldf<-read.table(text="Sample Cu Zn Mn
M1 1 5 10
M2 2.5 11 8
M3 1.15 11 12
M4 2 4 30
M5 8 15 35",
header=TRUE)
matplot(mldf,type="b",pch=c("C","Z","M"))
Jim
On Mon, Dec 5, 2016 at 11:25 PM, Maria Lathouri via R-help
<r-help@r-project.org> wrote:
> Dear all
> I know that my question is very simple but although I tried to find an answer
> online, I couldn't and I am stuck.
> I have a dataset of three numerical variables measured in different samples
> ID. Something like this:
> Sample Cu Zn MnM1 1 5
> 10M2 2.5 11 8M3 1.15 11
> 12 M4 2 4 30M5 8 15
> 35
> I would like to plot these variables (Cu, Zn, Mn) (in y-axis) against the
> Sample ID (in x-axis) in a scatter plot with lines as I want to see how they
> change in the samples.
> I tried using the command>plot(Sample, Cu, type="l", lty=1, col="red")
> but I wouldn't get a line. Actually, I would get some small horizontal lines
> in each point. I tried to use type="p" but I would get the same thing.
> I would very much appreciate if you could help me on that. Apparently, I am
> missing something.
> Thank you in advance.
> Kind regards,Maria
> [[alternative HTML version deleted]]
>
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