Need blue dots plotted on my figure, for some reason there not on there. Help?

clear

clc

%mass1 in kg
 m1=1;
%mass 2 in kg
 m2=0.5;
%mass 3 in kg
 m3=0.2;
%pivot point in cm 
 rp=87;
 
r1=.03

%length of beam 
 l=2.27;
 
%distance of mass 2
 r2=[58.7 27.8 20 59 30 31.2 68.5 67 34 60 39 50.3 50 45.3 45]';
%distance of mass 3
 r3=[12.89 20.65 226 120 217 193.1 91.6 110 197.5 166 158.3 142.1 150 176.5 122]';
 
%changing distance between m1 and pivot 
 R1=rp-r1;
%changing distance between m2 and pivot 
 R2=rp-r2;
%changing distance between m3 and pivot 
 R3=r3-rp;

%changing distance between half length of the beam and the pivot
 Rb=(((1/2)*.1)-rp); 
 
%calculate independent 
 x=R2
%calculate dependent
 y=R3
 
 
G=x;
G(:,2) = ones(length(x), 1);
delta = G \ y
slope=delta(1,1)
intercept=delta(2,1)

%mass of the beam in kg
m_b = m2./Rb.*slope-(m1./Rb).*R1



sigma = sqrt(sum((y-x).^2)./(length(x)-1));


se1 = sigma.*sqrt(1./((length(x)+mean(y)^2/((length(x)-1)*std(x)^2))));

se2 = sigma.*sqrt(1./((length (x)-1)*std(x)^2));


Ci1=tinv(.975,length(x)-1).*se1;

Ci2=tinv(.975,length(x)-1).*se2;

% creating a line of best fit

X = [min(x);1e-3;max(x)]';

Y = delta(1,1) + delta(2,1).*X;


SE=sigma.*sqrt(1/length(x)+(X-mean(x)).^2./((length(x)-1)*std(x).^2));

Ci=tinv(.975,length(x)-1).*SE;


figure(1)


clf


plot(m1, m2, 'ob')


hold on


% plotting the conidence intervals

plot (X, Y, 'R')

plot(X,Y+Ci,'g--')

plot(X,Y-Ci,'g--')


hold off



xlabel('$$-$$','interpreter','latex')


ylabel('$$-)$$','interpreter','latex')


print(figure(1), '-dpng', 'figure1')

Answer 1

[Walter Roberson]

You have

plot(m1, m2, 'ob')

Your m1 and m2 are scalars, so you are plotting exactly one blue dot. Which does show up -- it is near the upper left edge of the red line,