Plot mean as a green line width of 3

I have a line of code that looks like this

figure

y =Data.StrideTimeIntervals_15minTrial.PD(:,1);

subplot (3,4,1),plot (y)

title ('PD 1')

xlabel ('ISI #')

ylabel ('ISI (s)')

axis ([0,500,0.8,1.2])

And I'm wondering how to plot the mean line through the graph in the color green with a width of 3

Answer 1

[KALYAN ACHARJYA]

This?

subplot (3,4,1),plot (y,'g','linewidth',3);

I assumed y as a mean

[timetry2]

Yes, I need Y to be a mean but I need it to be a seperate line than the graph I have. So, the graph I have already looks like the below. And, I need to add a mean line in the color green and width 3.

[KALYAN ACHARJYA]

Can you show me, how you calculate mean of the that signal? (Maths?)

[timetry2]

Sorry I am unsure, however, the data I am getting is from this website https://www.sciencedirect.com/science/article/abs/pii/S0966636218316667? and it is under supplementary Data, and it should be a matlab file that downloads to give you the same data I am looking at.