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
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