Create a interdependent matrix in Matlab and repeat it for 10 times

Hi, I want to create the below mentioned interdependent matrix Matlab as mentioned below from E101 to S1(blue color) and repeat that for 10 times as done below (green color) E102 to S2 with continuous numbering for each new group(green color) from their previous group(blue color). Can you please help me with this.

Answer 1

[Andrei Bobrov]

nm = cellstr(reshape((string({'E','R','E','S'}) + ([101,1,106,1] + (0:9)'))',[],1));
T = repmat({tril(ones(4),-1)},1,10);
out = [{nan},nm';nm,num2cell(blkdiag(T{:}))];

[Santhosh Chandrasekar]

Sir, Thank you very much. This is what I needed. Can you tell me how to add that "CR" column and row in your given code? I don't want it to be repeated for 10 times, it should be created only once. Can you please add that to your above-mentioned code.

Answer 2

[KSSV]

L1 = tril(ones(4,4),-1) ; 
Z1 = zeros(4) ;

Blue = [L1 ; Z1] ;
Green = [Z1 ; L1] ;