[R] scatter plot of numerical variables against different sample ids
SWay at meco.com
Mon Dec 5 23:24:01 CET 2016
You can also try using ggplot2 to generate the plot:
> data <- gather(mldf,Element,Value,2:4)
> p <- ggplot(data,aes(x=factor(Element),y=Value,group=Sample,color=Sample))
Shawn Way, PE
From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of Jim Lemon
Sent: Monday, December 05, 2016 3:02 PM
To: Maria Lathouri <mlathouri at yahoo.gr>
Cc: R-help Mailing List <r-help at r-project.org>
Subject: Re: [R] scatter plot of numerical variables against different sample ids
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",
On Mon, Dec 5, 2016 at 11:25 PM, Maria Lathouri via R-help <r-help at 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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