How to plot using data stored in a .mat file?

Question

I have created a .mat file (variable) and it contains 2 columns, each one has 11 numbers. I want to plot column 1 (X axis)against column 2 (Y axis). The problem is whenever I try to plot, it gives me a figure with 2 curves. Both curves have the same X-Axis (numbers ranging from 1 to 11), and the Y-values for the first curves are numbers in my first column, the Y-values for my second curve are numbers in my second column. This is not what I am looking for, What I want is just one curve with X-values from my first column and Y-values coming from the second column. I have tried to change the values for the X axis and Y axis using the 'edit plot', but it is not working. Any idea?I cannot figure out how to make it work. Any ideas?

Expert Answer

Prashant Kumar PhD Expert

Answered Aug 25, 2026

Did you try

x = yourArray(:, 1); % Y of your first curve.
y = yourArray(:, 2); % Y of your second curve.
plot(x,y, 'bo-');

or this

scatter(x, y);

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