How to save a plot with multiple overlays as a single variable and/or plot the regression for all points as one line?

I have multiple samples in each graph that i have overlahyed using the hold on function, i am looking to find the regression for all points on the final overlayed scatter plot!

hold off

t = tiledlayout(1,2)

ax1 = nexttile

%Cre+

hold on

scatter(t1.D,t1.CC)

scatter(t6.D,t6.CC)

scatter(t8.D,t8.CC)

scatter(t9.D,t9.CC)

scatter(t12.D,t12.CC)

xlim([0 1000])

ylim([250 6000])

title('Cre-')

ylabel('Area(pixels^2)')

xlabel('Distance from nearest Sinus edge (pixels x 10^3)');

ax2 = nexttile

% Cre-

hold on

scatter(t4.D,t4.CC)

scatter(t5.D,t5.CC)

scatter(t10.D,t10.CC)

scatter(t11.D,t11.CC)

scatter(t13.D,t13.CC)

xlim([0 1000])

ylim([250 6000])

title('Cre-')

ylabel('Area(pixels^2)')

xlabel('Distance from nearest Sinus edge (pixels x 10^3)');

Thanks!

Answer 1

[KSSV]

Read about function regression to get the regression value and read about plotregression to get the regression plot.

[Theodore Fisher]

this seems to apply to only one plot at a time, i am looking to apply accross all points

[KSSV]

Calculate the value using regression and use scatter to plot.