For loop simple problem

i want to run this very simple for loop but the only result is a totally wrong chart and the message : " Unable to perform assignment because the indices on the left side are not compatible with the size of the right side" what does it mean ? how can solve this problem?

for i= 0.01:0.02:0.99

W1_t=i;

W2_t=1-i;

R_t=W1_t*mean(R_2(:,1))+W2_t*(R_2(:,2));

vp_t=W1_t^2*var(R_2(:,1))+W2_t^2*var(R_2(:,2))+2*W1_t*W2_t*c(2,1);

s_t=sqrt(vp_t);

figure(2)

L(1)=plot(s_t,R_t,'bx','Markersize',7);

hold on

xlim([0 5])

ylim([0 0.3])

end

Answer 1

[Walter Roberson]

Your s_t is a scalar. Your R_t is a vector. plot is creating a vector of line handles, one for each element in R_t. That vector does not fit inside L(1)