How to plot more than 1 curves in one graph.

Hi everybody!

I am trying to treat some data obtained making tensile tests. I would like to compare some curves between different specimens' family but I don't know how to do it. The principle problem is that I don't know how I can read all the excel of the test that I wanna plot together and then I will need some advice to plot all the data together.

Thanks in advance.

Answer 1

[KL]

if they are in columns of excel, read it as a matrix (for a all-numeric matrix),

 data = xlsread(filename);

now let's say you have 5 columns with columns 2-4 being the interested thing for you. Then simply,

 f = figure;
 h = plot(data(:,2:4))

to differentiate lines you can add legends,

 legends('line1','line2','line3','last line')