MATLAB: Expand array within for loop

loop

hello,
I have this code:
close all
x=[0,1,2,3,4,5]
x1=sin(x)
p1=x1(2)
p2=x1(3)
x3=cos(x)
p4=x3(2)
p5=x3(3)
figure(1)
plot(x1)
hold all
plot([2],[p1],'o')
plot([3],[p2],'o')
plot(x3)
plot([2],[p4],'o')
plot([3],[p5],'o')
k=2
    for k=1:k
        ls1=[num2str(k),'.Q']
        ls2=[num2str(k),'.SR']
        ls3=[num2str(k),'.r']            
    end
legend(ls1,ls2,ls3)
and I would like to fix the legend. I want my program to tell me that the 6 legend variables are: 1.Q,1.SR,1.r,2.Q,2.SR,2.r
Right now the program is overwriting the outcome of the for loop.
How do I do this?
Thank sou yo much!

Best Answer

legend( [1 2] + [".Q"; ".SR"; ".r"] )
Requires R2017a or later.
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